$ACFN
ACORN ENERGY, INC. Stock $acfn

$acfn Overview Financials Valuation SEC Filings Company Website

2013 Q1 Form 10-K Financial Statement

#000088098413000004 Filed on March 18, 2013

Income Statement

Concept	2013 Q1	2012 Q4	2012 Q3
Revenue	$5.716M	$4.796M	$4.713M
YoY Change	36.65%	-28.15%	-6.69%
Cost Of Revenue	$3.591M	$3.767M	$3.225M
YoY Change	20.38%	-7.9%	-0.59%
Gross Profit	$2.125M	$1.029M	$1.488M
YoY Change	77.08%	-60.19%	-17.65%
Gross Profit Margin	37.18%	21.46%	31.57%
Selling, General & Admin	$5.256M	$5.470M	$5.272M
YoY Change	24.28%	63.63%	67.79%
% of Gross Profit	247.34%	531.58%	354.3%
Research & Development	$2.001M	$1.819M	$1.754M
YoY Change	51.82%	29.19%	146.0%
% of Gross Profit	94.16%	176.77%	117.88%
Depreciation & Amortization	$379.0K	$370.0K	$380.0K
YoY Change	28.91%	68.18%	-142.22%
% of Gross Profit	17.84%	35.96%	25.54%
Operating Expenses	$7.257M	$7.289M	$7.026M
YoY Change	30.83%	53.42%	82.26%
Operating Profit	-$5.132M	-$6.260M	-$5.538M
YoY Change	18.06%	189.01%	170.41%
Interest Expense	$10.00K	$110.0K	-$160.0K
YoY Change	-150.0%	-257.14%	-161.54%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$5.118M	-$6.150M	-$5.698M
YoY Change	17.12%	174.92%	219.04%
Income Tax	$69.00K	-$480.0K	-$1.487M
% Of Pretax Income
Net Earnings	-$4.975M	-$5.383M	-$3.935M
YoY Change	18.76%	393.4%	-109.65%
Net Earnings / Revenue	-87.04%	-112.24%	-83.49%
Basic Earnings Per Share		-$0.30	-$0.22
Diluted Earnings Per Share	-$275.4K	-$298.2K	-$0.21
COMMON SHARES
Basic Shares Outstanding	18.07M shares	18.04M shares	17.93M shares
Diluted Shares Outstanding		18.04M shares	17.93M shares

Balance Sheet

Concept	2013 Q1	2012 Q4	2012 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$20.20M	$26.10M	$31.70M
YoY Change	-48.73%	-50.1%	-42.57%
Cash & Equivalents	$20.16M	$26.15M	$21.72M
Short-Term Investments		$0.00	$10.00M
Other Short-Term Assets	$3.618M	$3.547M	$3.143M
YoY Change	139.76%	284.71%	-59.18%
Inventory	$5.363M	$5.106M	$3.190M
Prepaid Expenses
Receivables	$2.593M	$5.481M	$4.746M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$38.57M	$46.19M	$49.35M
YoY Change	-35.0%	-36.09%	-32.11%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.599M	$927.0K	$815.0K
YoY Change	100.63%	45.98%	35.83%
Goodwill	$6.646M	$6.630M	$6.622M
YoY Change	-2.48%	42.98%
Intangibles	$9.305M	$9.561M	$9.823M
YoY Change	-7.16%	100.02%
Long-Term Investments
YoY Change
Other Assets	$863.0K	$745.0K	$214.0K
YoY Change	297.7%	26.49%	-93.89%
Total Long-Term Assets	$21.77M	$21.14M	$21.02M
YoY Change	2.18%	56.24%	54.52%
TOTAL ASSETS
Total Short-Term Assets	$38.57M	$46.19M	$49.35M
Total Long-Term Assets	$21.77M	$21.14M	$21.02M
Total Assets	$60.35M	$67.34M	$70.37M
YoY Change	-25.18%	-21.52%	-18.46%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.641M	$2.631M	$1.781M
YoY Change	-17.16%	28.22%	-22.57%
Accrued Expenses	$2.200M	$1.029M	$2.000M
YoY Change	22.22%	-31.58%	33.33%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$300.0K	$153.0K	$500.0K
YoY Change	-40.0%	-191.62%	-44.44%
Total Short-Term Liabilities	$8.506M	$10.24M	$7.852M
YoY Change	-15.77%	-15.1%	-22.26%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$39.00K
YoY Change	-100.0%	-100.0%	-80.5%
Other Long-Term Liabilities	$763.0K	$665.0K	$225.0K
YoY Change	223.31%	225.98%	-94.38%
Total Long-Term Liabilities	$5.365M	$5.156M	$4.383M
YoY Change	21.74%	23.29%	4.36%
TOTAL LIABILITIES
Total Short-Term Liabilities	$8.506M	$10.24M	$7.852M
Total Long-Term Liabilities	$5.365M	$5.156M	$4.383M
Total Liabilities	$13.87M	$15.39M	$12.24M
YoY Change	-4.38%	-5.22%	-15.03%
SHAREHOLDERS EQUITY
Retained Earnings	-$34.71M	-$29.73M	-$24.06M
YoY Change	101.79%	128.33%
Common Stock	$83.40M	$83.66M	$84.03M
YoY Change	-3.2%	-1.34%
Preferred Stock
YoY Change
Treasury Stock (at cost)	-$3.036M	$3.036M	$3.036M
YoY Change	0.0%	0.0%
Treasury Stock Shares	801.9K shares	801.9K shares	801.9K shares
Shareholders Equity	$46.38M	$51.66M	$57.70M
YoY Change
Total Liabilities & Shareholders Equity	$60.35M	$67.34M	$70.37M
YoY Change	-25.18%	-21.52%	-18.46%

Cashflow Statement

Concept	2013 Q1	2012 Q4	2012 Q3
OPERATING ACTIVITIES
Net Income	-$4.975M	-$5.383M	-$3.935M
YoY Change	18.76%	393.4%	-109.65%
Depreciation, Depletion And Amortization	$379.0K	$370.0K	$380.0K
YoY Change	28.91%	68.18%	-142.22%
Cash From Operating Activities	-$4.734M	-$5.530M	-$6.800M
YoY Change	0.42%	349.59%	27.82%
INVESTING ACTIVITIES
Capital Expenditures	$861.0K	-$200.0K	-$110.0K
YoY Change	277.63%	33.33%	-222.22%
Acquisitions	$0.00
YoY Change	-100.0%
Other Investing Activities	$10.00K	$11.10M	$13.91M
YoY Change	-100.13%	-159.39%	-74.68%
Cash From Investing Activities	-$855.0K	$10.89M	$13.81M
YoY Change	-89.07%	-157.8%	-74.9%
FINANCING ACTIVITIES
Cash Dividend Paid	$517.0K	$526.0K	$559.0K
YoY Change	-65.44%	-14.19%	-10.85%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$38.00K
YoY Change	-26.92%
Cash From Financing Activities	-$397.0K	-920.0K	-190.0K
YoY Change	-11.19%	1.1%	-119.79%
NET CHANGE
Cash From Operating Activities	-$4.734M	-5.530M	-6.800M
Cash From Investing Activities	-$855.0K	10.89M	13.81M
Cash From Financing Activities	-$397.0K	-920.0K	-190.0K
Net Change In Cash	-$5.986M	4.440M	6.820M
YoY Change	-53.9%	-121.16%	-86.54%
FREE CASH FLOW
Cash From Operating Activities	-$4.734M	-$5.530M	-$6.800M
Capital Expenditures	$861.0K	-$200.0K	-$110.0K
Free Cash Flow	-$5.595M	-$5.330M	-$6.690M
YoY Change	13.21%	393.52%	23.66%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2011Q4	us-gaap	Assets Assets	85805000	USD
CY2010Q4	us-gaap	Assets Assets	59785000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2631000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2052000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	5481000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	4965000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1029000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	1504000	USD
CY2011Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	165000	USD
CY2012Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	0	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	716000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	485000	USD
CY2012Q1	us-gaap	Acquired Finite Lived Intangible Asset Amount AcquiredFiniteLivedIntangibleAssetAmount	5581000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	84614000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	83469000	USD
CY2012	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	387000	USD
CY2010	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	209000	USD
CY2011	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	475000	USD
CY2011	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-13038000	USD
CY2010	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	1527000	USD
CY2012	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-4508000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	406000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	532000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	690000	USD
CY2012	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-4508000	USD
CY2011	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-13038000	USD
CY2010	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	1527000	USD
CY2011	us-gaap	Advertising Expense AdvertisingExpense	127000	USD
CY2012	us-gaap	Advertising Expense AdvertisingExpense	138000	USD
CY2010	us-gaap	Advertising Expense AdvertisingExpense	66000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	0	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	25000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	977000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	532000	USD
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1826000	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	867000	shares
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2095000	shares
CY2012	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2011	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2010	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1166000	USD
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CY2011Q4	us-gaap	Assets Current AssetsCurrent	72273000	USD
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CY2011Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	26437000	USD
CY2010Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	27597000	USD
CY2011Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2012Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2010Q2	us-gaap	Business Acquisition Contingent Consideration Potential Cash Payment BusinessAcquisitionContingentConsiderationPotentialCashPayment	50000	USD
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CY2010	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	1327000	USD
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CY2011	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain Or Loss BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss	0	USD
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CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-8133000	USD
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CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	26924000	USD
CY2011	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	0	USD
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CY2012	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	0	USD
CY2012	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2011	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	1683000	USD
CY2010	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	479000	USD
CY2011	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-187000	USD
CY2010	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-7051000	USD
CY2012	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
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CY2011	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-2020000	USD
CY2012	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	USD
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CY2010Q4	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	3625209	shares
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CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	30000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	30000000	shares
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CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	18325529	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	18870526	shares
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CY2012Q4	us-gaap	Common Stock Value CommonStockValue	188000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	183000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-16472000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35225000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-24217000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-4000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
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CY2011	us-gaap	Contract Revenue Cost ContractRevenueCost	7886000	USD
CY2012	us-gaap	Contract Revenue Cost ContractRevenueCost	10749000	USD
CY2010	us-gaap	Contract Revenue Cost ContractRevenueCost	6646000	USD
CY2012	us-gaap	Contracts Revenue ContractsRevenue	14651000	USD
CY2011	us-gaap	Contracts Revenue ContractsRevenue	11368000	USD
CY2010	us-gaap	Contracts Revenue ContractsRevenue	11234000	USD
	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	51750	shares
	us-gaap	Conversion Of Stock Shares Issued1 ConversionOfStockSharesIssued1	36502	shares
CY2012	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	14216000	USD
CY2011	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	12015000	USD
CY2010	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	8200000	USD
CY2012Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3225000	USD
CY2011Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	2760000	USD
CY2012Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3767000	USD
CY2012Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	4241000	USD
CY2011Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	4090000	USD
CY2012Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	2983000	USD
CY2011Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1921000	USD
CY2011Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3244000	USD
CY2011	us-gaap	Cost Of Goods Sold CostOfGoodsSold	3730000	USD
CY2010	us-gaap	Cost Of Goods Sold CostOfGoodsSold	1136000	USD
CY2012	us-gaap	Cost Of Goods Sold CostOfGoodsSold	2996000	USD
CY2011	us-gaap	Cost Of Services CostOfServices	399000	USD
CY2012	us-gaap	Cost Of Services CostOfServices	471000	USD
CY2010	us-gaap	Cost Of Services CostOfServices	418000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	190000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1800000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1802000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	461000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	676000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	88000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1890000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	648000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-1124000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-3000	USD
CY2011Q4	us-gaap	Debt Current DebtCurrent	677000	USD
CY2012Q4	us-gaap	Debt Current DebtCurrent	153000	USD
CY2012Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	153000	USD
CY2011Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	818000	USD
CY2011	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	-5896000	USD
CY2010	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	-386000	USD
CY2011Q4	us-gaap	Deferred Compensation Arrangement With Individual Exercise Price DeferredCompensationArrangementWithIndividualExercisePrice	5.30
CY2012Q1	us-gaap	Deferred Compensation Arrangement With Individual Exercise Price DeferredCompensationArrangementWithIndividualExercisePrice	6.68
CY2012Q4	us-gaap	Deferred Compensation Arrangement With Individual Exercise Price DeferredCompensationArrangementWithIndividualExercisePrice	7.57
CY2010Q1	us-gaap	Deferred Compensation Arrangement With Individual Exercise Price DeferredCompensationArrangementWithIndividualExercisePrice	7.38
CY2012Q4	us-gaap	Deferred Costs Current DeferredCostsCurrent	460000	USD
CY2011Q4	us-gaap	Deferred Costs Current DeferredCostsCurrent	0	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-14571000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1434000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-86000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-398000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	23000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	23000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-14657000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1832000	USD
CY2011Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	2876000	USD
CY2012Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	3323000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	4678000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	9108000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1138000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	695000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	835000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	695000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	0	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	288000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	440000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	750000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	391000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	1386000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	1600000	USD
CY2011Q1	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2010Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	-807000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2011Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2010	us-gaap	Distribution Made To Member Or Limited Partner Cash Distributions Paid DistributionMadeToMemberOrLimitedPartnerCashDistributionsPaid	135000	USD
CY2011	us-gaap	Distribution Made To Member Or Limited Partner Cash Distributions Paid DistributionMadeToMemberOrLimitedPartnerCashDistributionsPaid	0	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	0	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	1578000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	27000	USD
CY2012	us-gaap	Defined Contribution Plan Maximum Annual Contribution Per Employee Percent DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent	0
CY2010	us-gaap	Depreciation Depreciation	219000	USD
CY2011	us-gaap	Depreciation Depreciation	317000	USD
CY2012	us-gaap	Depreciation Depreciation	429000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1406000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	603000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	851000	USD
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	112000	USD
CY2012Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	112000	USD
CY2011Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	0	USD
CY2011Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	18000	USD
CY2011	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	31069000	USD
CY2010	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2012Q3	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2012Q2	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2011Q3	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	30683000	USD
CY2012Q4	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2011Q4	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	386000	USD
CY2012Q1	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2011Q2	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	0	USD
CY2012	us-gaap	Distribution Made To Member Or Limited Partner Cash Distributions Paid DistributionMadeToMemberOrLimitedPartnerCashDistributionsPaid	0	USD
CY2011	us-gaap	Dividends Dividends	1490000	USD
CY2012	us-gaap	Dividends Dividends	2507000	USD
CY2012Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	0	USD
CY2011Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	876000	USD
CY2011Q4	us-gaap	Due From Employees Current DueFromEmployeesCurrent	132000	USD
CY2012Q4	us-gaap	Due From Employees Current DueFromEmployeesCurrent	195000	USD
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.68
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.03
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.93
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.12
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.24
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.33
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.30
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1907000	USD
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.02
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.02
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.01
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.02
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.03
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.06
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.22
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.13
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.99
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.68
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.93
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.29
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.06
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.12
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.13
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	273000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-72000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	134000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Discontinued Operations EffectOfExchangeRateOnCashAndCashEquivalentsDiscontinuedOperations	154000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Discontinued Operations EffectOfExchangeRateOnCashAndCashEquivalentsDiscontinuedOperations	0	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Discontinued Operations EffectOfExchangeRateOnCashAndCashEquivalentsDiscontinuedOperations	0	USD
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.14
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.09
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	1.69
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.35
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.21
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	1.35
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2420000	USD
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	937000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M18D
CY2010Q1	us-gaap	Equity Issuance Per Share Amount EquityIssuancePerShareAmount	5.50
CY2010Q4	us-gaap	Equity Issuance Per Share Amount EquityIssuancePerShareAmount	3.50
CY2010	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2011	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	492000	USD
CY2012	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2012Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2012Q4	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2011Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	492000	USD
CY2012Q3	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2012Q2	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2011Q4	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2011Q2	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY2011Q3	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	0	USD
CY1995	us-gaap	Equity Method Investment Sold Carrying Amount EquityMethodInvestmentSoldCarryingAmount	250000	USD
CY2012Q4	us-gaap	Escrow Deposit EscrowDeposit	0	USD
CY2011Q4	us-gaap	Escrow Deposit EscrowDeposit	5961000	USD
CY2012Q4	us-gaap	Fair Value Concentration Of Risk Cash And Cash Equivalents FairValueConcentrationOfRiskCashAndCashEquivalents	26961000	USD
CY2012Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	2648000	USD
CY2012Q1	us-gaap	Finite Lived Customer Relationships Gross FiniteLivedCustomerRelationshipsGross	3236000	USD
CY2010Q2	us-gaap	Finite Lived Customer Relationships Gross FiniteLivedCustomerRelationshipsGross	253000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	993000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	854000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	854000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	865000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	977000	USD
CY2012Q1	us-gaap	Finite Lived Noncompete Agreements Gross FiniteLivedNoncompeteAgreementsGross	26000	USD
CY2010Q2	us-gaap	Finite Lived Noncompete Agreements Gross FiniteLivedNoncompeteAgreementsGross	81000	USD
CY2010Q2	us-gaap	Finite Lived Trade Names Gross FiniteLivedTradeNamesGross	187000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	15000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-87000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	133000	USD
CY2010	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	5929000	USD
CY2011	us-gaap	Gains Losses On Sales Of Assets GainsLossesOnSalesOfAssets	64000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	4637000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	6630000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	4679000	USD
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	1930000	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2010	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1166000	USD
CY2011	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2011	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	-42000	USD
CY2012	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	63000	USD
CY2010	us-gaap	Gross Profit GrossProfit	6044000	USD
CY2012	us-gaap	Gross Profit GrossProfit	5203000	USD
CY2011	us-gaap	Gross Profit GrossProfit	6913000	USD
CY2011Q1	us-gaap	Gross Profit GrossProfit	1174000	USD
CY2012Q1	us-gaap	Gross Profit GrossProfit	1200000	USD
CY2012Q3	us-gaap	Gross Profit GrossProfit	1488000	USD
CY2012Q4	us-gaap	Gross Profit GrossProfit	1029000	USD
CY2011Q4	us-gaap	Gross Profit GrossProfit	2585000	USD
CY2012Q2	us-gaap	Gross Profit GrossProfit	1486000	USD
CY2011Q2	us-gaap	Gross Profit GrossProfit	1347000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	1807000	USD
CY2010	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2012	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2011	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-20167000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-7053000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-7445000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-524000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	335000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-515000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-7110000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-7568000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-20691000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1786000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-2237000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1684000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-4473000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-5698000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-6150000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1861000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-4370000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	5199000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-7781000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-17735000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1749000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-3409000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1542000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-5670000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	10325000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1835000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-4211000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-4445000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.93
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.33
CY2010	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.48
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.30
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.08
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.10
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.10
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.60
CY2010	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.48
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.93
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.32
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.08
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-232000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	29121000	USD
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-17969000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-540000	USD
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-67000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.10
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.30
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.59
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.10
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-151000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	-157000	USD
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Noncontrolling Interest IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-1.20
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.70
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.73
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.03
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.02
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-1.20
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.67
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.03
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.70
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.02
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-12767000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	671000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2956000	USD
CY2012Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-480000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-12111000	USD
CY2011Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-26000	USD
CY2012Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1064000	USD
CY2012Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	75000	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1487000	USD
CY2011Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	65000	USD
CY2011Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-695000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-85000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2180000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	216000	USD
CY2011Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	504000	USD
CY2012Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	2096000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-305000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2659000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	181000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	203000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	3076000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1027000	USD
CY2010	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	2208000	USD
CY2011	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1615000	USD
CY2012	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1175000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-597000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2365000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	422000	USD
CY2011	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	-28000	USD
CY2012	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	1435000	USD
CY2010	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	1806000	USD
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	255000	shares
CY2012Q4	us-gaap	Inventory Net InventoryNet	5106000	USD
CY2012Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	3281000	USD
CY2011Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	1663000	USD
CY2012Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	316000	USD
CY2011Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	0	USD
CY2011Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	481000	USD
CY2012Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	782000	USD
CY2011	us-gaap	Indefinite Lived Intangible Assets Translation And Purchase Accounting Adjustments IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments	-27000	USD
CY2012	us-gaap	Indefinite Lived Intangible Assets Translation And Purchase Accounting Adjustments IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments	27000	USD
CY2012Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9561000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4780000	USD
CY2010Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	5339000	USD
CY2011Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	18000000	USD
CY2012Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	0	USD
CY2012	us-gaap	Interest Expense InterestExpense	-104000	USD
CY2011	us-gaap	Interest Expense InterestExpense	-198000	USD
CY2010	us-gaap	Interest Expense InterestExpense	-181000	USD
CY2012	us-gaap	Interest Paid InterestPaid	72000	USD
CY2010	us-gaap	Interest Paid InterestPaid	151000	USD
CY2011	us-gaap	Interest Paid InterestPaid	144000	USD
CY2012Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1043000	USD
CY2011Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	0	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	2144000	USD
CY2010	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2011	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
CY2012	us-gaap	Inventory Write Down InventoryWriteDown	357000	USD
CY2010Q4	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	282000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	146000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	39000	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	44000	USD
CY2010Q4	us-gaap	Investment Owned Balance Shares InvestmentOwnedBalanceShares	1155160	shares
CY2010	us-gaap	Issuance Of Stock And Warrants For Services Or Claims IssuanceOfStockAndWarrantsForServicesOrClaims	153000	USD
CY2010Q4	us-gaap	Issuance Of Stock And Warrants For Services Or Claims IssuanceOfStockAndWarrantsForServicesOrClaims	153000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1028000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	662000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	871000	USD
CY2012Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	482000	USD
CY2011Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	410000	USD
CY2012	us-gaap	Legal Fees LegalFees	264000	USD
CY2011	us-gaap	Legal Fees LegalFees	309000	USD
CY2010	us-gaap	Legal Fees LegalFees	393000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	67336000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	85805000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	12056000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	10235000	USD
CY2011Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	4182000	USD
CY2012Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	5156000	USD
CY2012Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding	0	USD
CY2011Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding	510000	USD
CY2012	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	1072000	USD
CY2009Q4	us-gaap	Long Term Debt LongTermDebt	530000	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	274000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	143000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	-153000	USD
CY2011Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	-167000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	143000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	141000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2011	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	0	USD
CY2010	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	1821000	USD
CY2012	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	0	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	-84000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	286000	USD
CY2010	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	2224000	USD
CY2012	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	1067000	USD
CY2011	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	600000	USD
CY2011Q1	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.806
CY2010Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.656
CY2012	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">NATURE OF OPERATIONS</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">(a)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Description of Business</font></div></td></tr></table><div style="line-height:120%;padding-left:4px;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Acorn Energy, Inc. (“Acorn” or the “Company”) is a Delaware corporation which is a holding company focused on technology driven solutions for energy infrastructure management.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Through its majority-owned operating subsidiaries the Company provides the following products and services:</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Sonar and acoustic related solutions for energy, defense and commercial markets and other real-time embedded hardware and software development is reported in the Company’s Energy & Security Sonar Solutions (formerly known as Naval and RT Solutions) segment whose activities are conducted through its DSIT Solutions Ltd. (“DSIT”) subsidiary.</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Smart grid distribution automation products and services provided through the Company’s GridSense Pty Ltd. and GridSense Inc. subsidiaries (“GridSense”) which were acquired in May 2010 (see Note 3(b)).</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Power Generation (PG) Monitoring  products and services are provided by the Company's OmniMetrix subsidiary which was acquired in February 2012 (See Note 3(a)). OmniMetrix's PG products and services deliver critical, real-time machine information to customers and provide remote diagnostics that give users real control over their equipment. </font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-top:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Energy and security sensor systems services which are provided by the Company’s U.S. Seismic Systems, Inc. (“USSI”) subsidiary which was effectively acquired in February 2010 (see Note 3(c)).</font></div></td></tr></table><div style="line-height:120%;padding-left:4px;text-align:justify;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company’s operations are based in the United States, Israel and Australia.  Acorn’s shares are traded on the NASDAQ Global Market under the symbol ACFN.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">See Note 20 for segment information and major customers.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">(b)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Accounting Principles</font></div></td></tr></table><div style="line-height:120%;padding-left:4px;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">(c)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Use of Estimates in Preparation of Financial Statements</font></div></td></tr></table><div style="line-height:120%;padding-left:4px;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As applicable to these consolidated financial statements, the most significant estimates and assumptions relate to percentages of completion with respect to revenue recognition, uncertainties with respect to income taxes, inventories, contingencies, purchase price allocations and analyses of the possible impairment of goodwill.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">(d)</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Amounts in the footnotes in the Financial Statements</font></div></td></tr></table><div style="line-height:120%;padding-left:4px;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">All dollar amounts in the footnotes of the consolidated financial statements are in thousands except for per share data.</font></div></div>
CY2012	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	0	USD
CY2010	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-15108000	USD
CY2011	us-gaap	Net Cash Provided By Used In Discontinued Operations NetCashProvidedByUsedInDiscontinuedOperations	-524000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1203000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	19419000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2520000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2336000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	36562000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	16496000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-22243000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-7839000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-6254000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	35409000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	-25088000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	-16711000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	-2217000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	-4189000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	-2079000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	40796000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	-1091000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	-3935000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	-5383000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	-3204000	USD
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-595000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1024000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-549000	USD
CY2012Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-205000	USD
CY2012Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-256000	USD
CY2011Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-167000	USD
CY2012Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-287000	USD
CY2011Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-65000	USD
CY2011Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-136000	USD
CY2011Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-181000	USD
CY2012Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-276000	USD
CY2011	us-gaap	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Warrants Issued1 NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationWarrantsIssued1	0	shares
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Warrants Issued1 NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationWarrantsIssued1	0	shares
CY2010	us-gaap	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Warrants Issued1 NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationWarrantsIssued1	80500	shares
CY2012	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	541000	USD
CY2010	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	264000	USD
CY2011	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	249000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	14947000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	25951000	USD
CY2010	us-gaap	Operating Expenses OperatingExpenses	12571000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	-20748000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	-6527000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	-8034000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-2166000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-5538000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-2048000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-6260000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-4603000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-2059000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-1761000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-4347000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	2380000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	880000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	149000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	205000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	365000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	539000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	242000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	67000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	74000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	922000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	3547000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	745000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	589000	USD
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-168000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	235000	USD
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	871000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1708000	USD
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	4544000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	204000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	665000	USD
CY2012Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	0	USD
CY2011Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	10000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-15000	USD
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	87000	USD
CY2010	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-29000	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1116000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	613000	USD
CY2010	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	3208000	USD
CY2012Q2	us-gaap	Payments Of Dividends PaymentsOfDividends	627000	USD
CY2012Q3	us-gaap	Payments Of Dividends PaymentsOfDividends	559000	USD
CY2012Q4	us-gaap	Payments Of Dividends PaymentsOfDividends	526000	USD
CY2012Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	1496000	USD
CY2011Q4	us-gaap	Payments Of Dividends PaymentsOfDividends	613000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	7000	USD
CY2010	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2011	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2012	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	150000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	-502000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	-237000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	-684000	USD
CY2011	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	-1930000	USD
CY2012	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	-508000	USD
CY2010	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	-1301000	USD
CY2012	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	-8015000	USD
CY2010	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	USD
CY2011	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	-18000000	USD
CY2011Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	286000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	396000	USD
CY2011	us-gaap	Proceeds From Divestiture Of Businesses And Interests In Affiliates ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates	100000	USD
CY2012	us-gaap	Proceeds From Divestiture Of Businesses And Interests In Affiliates ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates	0	USD
CY2010	us-gaap	Proceeds From Divestiture Of Businesses And Interests In Affiliates ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates	0	USD
CY2010Q4	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	4027000	USD
CY2010Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	12275000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	68000	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	129000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	16000	USD
CY2012	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	-510000	USD
CY2011	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	-557000	USD
CY2010	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	962000	USD
CY2010	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	3010000	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2011	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	0	USD
CY2012	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	0	USD
CY2010	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	-200000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	30000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	62000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities		USD
CY2012	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2010	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2011	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	492000	USD
CY2012	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	2188000	USD
CY2011	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	839000	USD
CY2010	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	1029000	USD
CY2010	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	0	USD
CY2012	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	26015000	USD
CY2011	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	0	USD
CY2010	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	2229000	USD
CY2011	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	100000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	305000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	211000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	159000	USD
CY2011	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	USD
CY2011Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	37000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	34860000	USD
CY2010	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	61000	USD
CY2012	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	1050000	USD
CY2012Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	51000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	-25683000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	-17735000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	-5670000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	-4211000	USD
CY2011Q4	us-gaap	Profit Loss ProfitLoss	-1156000	USD
CY2011Q1	us-gaap	Profit Loss ProfitLoss	-2353000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	-3409000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	40615000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	-2246000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	-4445000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3242000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1929000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	927000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	635000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	490000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	700000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	1636000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Owned Accumulated Depreciation PropertyPlantAndEquipmentOwnedAccumulatedDepreciation	2315000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Owned Accumulated Depreciation PropertyPlantAndEquipmentOwnedAccumulatedDepreciation	1294000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	26000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2010	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	115000	USD
CY2012Q4	us-gaap	Restricted Investments Current RestrictedInvestmentsCurrent	699000	USD
CY2011Q4	us-gaap	Restricted Investments Current RestrictedInvestmentsCurrent	2223000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-29733000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-13022000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	173000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	342000	USD
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	140000	USD
CY2010	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	12000	USD
CY2011	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	38	USD
CY2010	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	0	USD
CY2012	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	10000	USD
CY2012	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6590000	USD
CY2011	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2995000	USD
CY2010	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	965000	USD
CY2011Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1408000	USD
CY2011Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	384000	USD
CY2012Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1699000	USD
CY2012Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1819000	USD
CY2012Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1318000	USD
CY2012Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1754000	USD
CY2011Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	713000	USD
CY2011Q1	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	490000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	814000	USD
CY2010Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	300000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	2494000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	271000	USD
CY2011	us-gaap	Revenue Other Manufactured Products RevenueOtherManufacturedProducts	7049000	USD
CY2012	us-gaap	Revenue Other Manufactured Products RevenueOtherManufacturedProducts	3880000	USD
CY2010	us-gaap	Revenue Other Manufactured Products RevenueOtherManufacturedProducts	2464000	USD
CY2010	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	14244000	USD
CY2011	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	18928000	USD
CY2012	us-gaap	Revenues From External Customers RevenuesFromExternalCustomers	19419000	USD
CY2010	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2012	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2011	us-gaap	Revenues From Transactions With Other Operating Segments Of Same Entity RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity	0	USD
CY2012	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	0	USD
CY2011	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	0	USD
CY2010	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	15176000	USD
CY2010Q4	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	3709000	USD
CY2010Q1	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	11467000	USD
CY2011	us-gaap	Sale Of Stock Percentage Of Ownership Before Transaction SaleOfStockPercentageOfOwnershipBeforeTransaction	0.65
CY2011	us-gaap	Sales Revenue Net SalesRevenueNet	18928000	USD
CY2012	us-gaap	Sales Revenue Net SalesRevenueNet	19419000	USD
CY2010	us-gaap	Sales Revenue Net SalesRevenueNet	14244000	USD
CY2012Q4	us-gaap	Sales Revenue Net SalesRevenueNet	4796000	USD
CY2011Q3	us-gaap	Sales Revenue Net SalesRevenueNet	5051000	USD
CY2012Q1	us-gaap	Sales Revenue Net SalesRevenueNet	4183000	USD
CY2012Q3	us-gaap	Sales Revenue Net SalesRevenueNet	4713000	USD
CY2012Q2	us-gaap	Sales Revenue Net SalesRevenueNet	5727000	USD
CY2011Q2	us-gaap	Sales Revenue Net SalesRevenueNet	4107000	USD
CY2011Q4	us-gaap	Sales Revenue Net SalesRevenueNet	6675000	USD
CY2011Q1	us-gaap	Sales Revenue Net SalesRevenueNet	3095000	USD
CY2010	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	546000	USD
CY2012	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	888000	USD
CY2011	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	511000	USD
CY2012Q4	us-gaap	Security Deposit SecurityDeposit	43000	USD
CY2012Q4	us-gaap	Segment Reporting Information Net Assets SegmentReportingInformationNetAssets	25637000	USD
CY2011Q4	us-gaap	Segment Reporting Information Net Assets SegmentReportingInformationNetAssets	14237000	USD
CY2010Q4	us-gaap	Segment Reporting Information Net Assets SegmentReportingInformationNetAssets	12906000	USD
CY2010	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	12966000	USD
CY2012	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	17857000	USD
CY2011	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	17539000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	11952000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	10440000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	19361000	USD
CY2012Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	4390000	USD
CY2011Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3343000	USD
CY2012Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	5272000	USD
CY2012Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	4229000	USD
CY2012Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	5470000	USD
CY2011Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3142000	USD
CY2011Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2743000	USD
CY2011Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2724000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	458000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	855000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	690000	USD
CY2012Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P1Y
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P90D
CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P1Y
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.013
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.018
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3585000	USD
CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2012Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.021
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.018
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.68
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.62
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.58
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.59
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.62
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.57
CY2012Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.60
CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.69
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.028
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.018
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.018
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.011
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.020
CY2012Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.014
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.013
CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.034
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	1623014	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	954432	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1267915	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1572455	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	247000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1932000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	707000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	364167	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	120000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	173381	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	5.10
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	6.13
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	3.00
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	260000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	348898	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	166666	shares
CY2012Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	25000	shares
CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	25000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	25000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	5000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.72
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.47
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.17
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.53
CY2012Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.23
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.23
CY2010Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	5.01
CY2012Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2010Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2010Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1817665	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1311397	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1388333	shares
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	4.26
CY2010Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	3.62
CY2011Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	4.08
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1745165	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.20
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	4.17
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.52
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.69
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	3384000	USD
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	2.36
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	2.62
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	3.24
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	7.85
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	5.58
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	4.63
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	954432	shares
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	1311397	shares
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M18D
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y6M
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2012Q1	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y
CY2011Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y
CY2010Q1	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y
CY2011	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	51000	USD
CY2012	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	22734	shares
CY2012Q4	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	14305	shares
CY2011	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	0	shares
CY2012Q1	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	0	shares
CY2012Q2	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	0	shares
CY2012Q3	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	8429	shares
CY2011Q4	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	0	shares
CY2010	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	13598	shares
CY2011	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	0	shares
CY2012	us-gaap	Stock Issued During Period Shares Other StockIssuedDuringPeriodSharesOther	-269808	shares
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	252453	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	67500	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	231831	shares
CY2010	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	473161	shares
CY2010	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	5640000	USD
CY2012	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	175000	USD
CY2012Q2	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	USD
CY2011	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	USD
CY2011Q4	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	USD
CY2012Q4	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	106000	USD
CY2012Q3	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	69000	USD
CY2012Q1	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1000	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	11467000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	101000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	211000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1355000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	220000	USD
CY2010	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1791000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	51659000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	69651000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	51945000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	69567000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	41877000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	36098000	USD
CY2011	us-gaap	Stockholders Equity Other StockholdersEquityOther	30000	USD
CY2010	us-gaap	Stockholders Equity Other StockholdersEquityOther	62000	USD
CY2012Q3	us-gaap	Subsidiary Or Equity Method Investee Cumulative Percentage Ownership After All Transactions SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions	0.936
CY2011Q4	us-gaap	Supplemental Unemployment Benefits Severance Benefits SupplementalUnemploymentBenefitsSeveranceBenefits	3837000	USD
CY2012Q4	us-gaap	Supplemental Unemployment Benefits Severance Benefits SupplementalUnemploymentBenefitsSeveranceBenefits	4491000	USD
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	561000	USD
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	475000	USD
CY2010	us-gaap	Treasury Stock Reissued At Lower Than Repurchase Price TreasuryStockReissuedAtLowerThanRepurchasePrice	438000	USD
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	801920	shares
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	801920	shares
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	3036000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	3036000	USD
CY2011Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	3778000	USD
CY2012Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	5213000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	73000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	18000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	-73000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	19000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	55000	USD
CY2011Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	-3843000	USD
CY2012Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	-8413000	USD
CY2011	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	8657000	USD
CY2012	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	4570000	USD
CY2011Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	427000	USD
CY2012Q4	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	55000	USD
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14910000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17891000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17743000	shares
CY2011Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17449000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17912000	shares
CY2012Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17680000	shares
CY2011Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17521000	shares
CY2011Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17489000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	18038000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17934000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17810000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17462000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17891000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14910000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	18038000	shares
CY2011Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17521000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17934000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17508000	shares
CY2011Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17449000	shares
CY2011Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17489000	shares
CY2012Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17680000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	17912000	shares
CY2012	acfn	Acorn Percentage Holdings In Dsit AcornPercentageHoldingsInDsit	0.84
CY2011	acfn	Acorns Potential Holding In Ussi If Final Option To Invest In Ussi Would Be Exercised AcornsPotentialHoldingInUssiIfFinalOptionToInvestInUssiWouldBeExercised	0.874
CY2011	acfn	Acquisition Of Gridsense Net Of Cash Acquired AcquisitionOfGridsenseNetOfCashAcquired	0	USD
CY2010	acfn	Acquisition Of Gridsense Net Of Cash Acquired AcquisitionOfGridsenseNetOfCashAcquired	-1352000	USD
CY2012	acfn	Acquisition Of Gridsense Net Of Cash Acquired AcquisitionOfGridsenseNetOfCashAcquired	0	USD
CY2010	acfn	Acquisition Of Omi Net Of Cash Acquired AcquisitionOfOmiNetOfCashAcquired	0	USD
CY2012	acfn	Acquisition Of Omi Net Of Cash Acquired AcquisitionOfOmiNetOfCashAcquired	0	USD
CY2011	acfn	Acquisition Of Omi Net Of Cash Acquired AcquisitionOfOmiNetOfCashAcquired	0	USD
CY2011Q1	acfn	Additional Investment By Parent Company In Subsidiary Via Exercise Of Options AdditionalInvestmentByParentCompanyInSubsidiaryViaExerciseOfOptions	750000	USD
CY2011Q1	acfn	Additional Investment By Parent Company In Subsidiary Via Exercise Of Options AdditionalInvestmentByParentCompanyInSubsidiaryViaExerciseOfOptions	250000	USD
CY2010	acfn	Adjustment Of Additional Paid In Capital And Non Controlling Interests From Investment In Discontinued Operations By Non Controlling Interests AdjustmentOfAdditionalPaidInCapitalAndNonControllingInterestsFromInvestmentInDiscontinuedOperationsByNonControllingInterests	587000	USD
CY2012	acfn	Adjustment Of Additional Paid In Capital And Noncontrolling Interests From Investment In Noncontrolling Interests AdjustmentOfAdditionalPaidInCapitalAndNoncontrollingInterestsFromInvestmentInNoncontrollingInterests	1067000	USD
CY2011	acfn	Adjustment Of Additional Paid In Capital And Noncontrolling Interests From Investment In Noncontrolling Interests AdjustmentOfAdditionalPaidInCapitalAndNoncontrollingInterestsFromInvestmentInNoncontrollingInterests	600000	USD
CY2010	acfn	Adjustment Of Additional Paid In Capital And Noncontrolling Interests From Investment In Noncontrolling Interests AdjustmentOfAdditionalPaidInCapitalAndNoncontrollingInterestsFromInvestmentInNoncontrollingInterests	1791000	USD
CY2011	acfn	Adjustment Of Non Controlling Interests Following Exercise Of Options In Subsidiary AdjustmentOfNonControllingInterestsFollowingExerciseOfOptionsInSubsidiary	0	USD
CY2012	acfn	Adjustment Of Non Controlling Interests Following Exercise Of Options In Subsidiary AdjustmentOfNonControllingInterestsFollowingExerciseOfOptionsInSubsidiary	0	USD
CY2010	acfn	Adjustment Of Non Controlling Interests Following Exercise Of Options In Subsidiary AdjustmentOfNonControllingInterestsFollowingExerciseOfOptionsInSubsidiary	0	USD
CY2011	acfn	Amortization Expense Discontinued Operations AmortizationExpenseDiscontinuedOperations	407000	USD
CY2010	acfn	Amortization Expense Discontinued Operations AmortizationExpenseDiscontinuedOperations	862000	USD
CY2011	acfn	Amortization Of Intangibles Including Discontinued Operations AmortizationOfIntangiblesIncludingDiscontinuedOperations	939000	USD
CY2010	acfn	Amortization Of Intangibles Including Discontinued Operations AmortizationOfIntangiblesIncludingDiscontinuedOperations	1246000	USD
CY2011	acfn	Amount Advanced By Parent Company In Contemplation Of New Investment Agreement AmountAdvancedByParentCompanyInContemplationOfNewInvestmentAgreement	2000000	USD
	acfn	Amount Funded In Enertech AmountFundedInEnertech	3050000	USD
CY2010Q2	acfn	Amount Of Finite Lived Intangible Assets Acquired In Business Combination Assigned To Acquiree Intellectual Property AmountOfFiniteLivedIntangibleAssetsAcquiredInBusinessCombinationAssignedToAcquireeIntellectualProperty	-222000	USD
CY2010Q2	acfn	Amount Of Finite Lived Intangible Assets Acquired In Business Combination Assigned To Acquiree Non Compete Agreements AmountOfFiniteLivedIntangibleAssetsAcquiredInBusinessCombinationAssignedToAcquireeNonCompeteAgreements	100000	USD
CY2011	acfn	Amount Of Interest Repaid From Related Party Debt AmountOfInterestRepaidFromRelatedPartyDebt	1000	USD
CY2010	acfn	Amount Of Legal Costs Incurred In Deconsolidation Of Subsidiary Transaction AmountOfLegalCostsIncurredInDeconsolidationOfSubsidiaryTransaction	95000	USD
CY2012Q4	acfn	Amount Of Net Operating Loss That Can Be Utilized Per Year AmountOfNetOperatingLossThatCanBeUtilizedPerYear	259000	USD
CY2011	acfn	Amount Of Principle Repaid From Related Party Debt AmountOfPrincipleRepaidFromRelatedPartyDebt	65000	USD
CY2010Q4	acfn	Amount Of Reduction From Coreworx Debt To Parent Company In Accordance With Terms And Conditions As Stipulated In Sale Of Coreworx Agreement AmountOfReductionFromCoreworxDebtToParentCompanyInAccordanceWithTermsAndConditionsAsStipulatedInSaleOfCoreworxAgreement	1436000	USD
CY2010Q4	acfn	Amount Of Restructuring Fee That Coreworx Shall Pay To Acorn AmountOfRestructuringFeeThatCoreworxShallPayToAcorn	40000	USD
CY2011	acfn	Amounts Funded For Severance Assets AmountsFundedForSeveranceAssets	-315000	USD
CY2010	acfn	Amounts Funded For Severance Assets AmountsFundedForSeveranceAssets	-281000	USD
CY2012	acfn	Amounts Funded For Severance Assets AmountsFundedForSeveranceAssets	-476000	USD
CY2012	acfn	Annual Minimum Future Royalty Payment For License AnnualMinimumFutureRoyaltyPaymentForLicense	50000	USD
CY2012	acfn	Approximate Term Of Product Or Project Warranty ApproximateTermOfProductOrProjectWarranty	P1Y
CY2012	acfn	Australia Corporate Tax Rate AustraliaCorporateTaxRate	0.30
CY2012	acfn	Average Exercise Price Warrants Expired Or Forfeited AverageExercisePriceWarrantsExpiredOrForfeited	3.68
CY2011	acfn	Average Exercise Price Warrants Expired Or Forfeited AverageExercisePriceWarrantsExpiredOrForfeited	0.00
CY2010	acfn	Average Exercise Price Warrants Expired Or Forfeited AverageExercisePriceWarrantsExpiredOrForfeited	0.00
CY2012	acfn	Bank Debt Monthly Payments BankDebtMonthlyPayments	12000	USD
CY2012	acfn	Bank Debt Number Of Monthly Payments To Repay Debt BankDebtNumberOfMonthlyPaymentsToRepayDebt	48	M
CY2012	acfn	Bird Foundation Advance Payment BirdFoundationAdvancePayment	180000	USD
CY2012	acfn	Bird Foundation Advance Payment Dsit Portion BirdFoundationAdvancePaymentDsitPortion	113000	USD
CY2012	acfn	Bird Foundation Advance Payment Ussi Portion BirdFoundationAdvancePaymentUssiPortion	67000	USD
CY2012	acfn	Bird Royalty Rate On Gross Sales BirdRoyaltyRateOnGrossSales	0.05
CY2010	acfn	Book Value Of Goodwill Related To Coreworx BookValueOfGoodwillRelatedToCoreworx	4970000	USD
CY2010	acfn	Book Value Of Intangible Assets Exluding Goodwill Related To Coreworx BookValueOfIntangibleAssetsExludingGoodwillRelatedToCoreworx	4504000	USD
CY2010Q2	acfn	Business Acquisition Purchase Price Allocation Gain On Step Up Of Investment BusinessAcquisitionPurchasePriceAllocationGainOnStepUpOfInvestment	-1327000	USD
CY2010Q4	acfn	Cash Amount Invested In Subsidiary As Of Balance Sheet Date CashAmountInvestedInSubsidiaryAsOfBalanceSheetDate	1500000	USD
CY2009Q4	acfn	Cash And Cash Equivalents At Beginning Of Year Of Continuing Operations CashAndCashEquivalentsAtBeginningOfYearOfContinuingOperations	8033000	USD
CY2010Q4	acfn	Cash And Cash Equivalents At Beginning Of Year Of Continuing Operations CashAndCashEquivalentsAtBeginningOfYearOfContinuingOperations	6549000	USD
CY2011Q4	acfn	Cash And Cash Equivalents At Beginning Of Year Of Continuing Operations CashAndCashEquivalentsAtBeginningOfYearOfContinuingOperations	34280000	USD
CY2011Q4	acfn	Cash And Cash Equivalents At Beginning Of Year Of Discontinued Operations CashAndCashEquivalentsAtBeginningOfYearOfDiscontinuedOperations	0	USD
CY2010Q4	acfn	Cash And Cash Equivalents At Beginning Of Year Of Discontinued Operations CashAndCashEquivalentsAtBeginningOfYearOfDiscontinuedOperations	807000	USD
CY2009Q4	acfn	Cash And Cash Equivalents At Beginning Of Year Of Discontinued Operations CashAndCashEquivalentsAtBeginningOfYearOfDiscontinuedOperations	3175000	USD
CY2011Q4	acfn	Cash And Cash Equivalents At End Of Year Before Removing Disc Ops Cash CashAndCashEquivalentsAtEndOfYearBeforeRemovingDiscOpsCash	34280000	USD
CY2012Q4	acfn	Cash And Cash Equivalents At End Of Year Before Removing Disc Ops Cash CashAndCashEquivalentsAtEndOfYearBeforeRemovingDiscOpsCash	26147000	USD
CY2010Q4	acfn	Cash And Cash Equivalents At End Of Year Before Removing Disc Ops Cash CashAndCashEquivalentsAtEndOfYearBeforeRemovingDiscOpsCash	7356000	USD
CY2011Q4	acfn	Cash And Cash Equivalents Held By Continuing Operations At End Of Year CashAndCashEquivalentsHeldByContinuingOperationsAtEndOfYear	34280000	USD
CY2010Q4	acfn	Cash And Cash Equivalents Held By Continuing Operations At End Of Year CashAndCashEquivalentsHeldByContinuingOperationsAtEndOfYear	6549000	USD
CY2012Q4	acfn	Cash And Cash Equivalents Held By Continuing Operations At End Of Year CashAndCashEquivalentsHeldByContinuingOperationsAtEndOfYear	26147000	USD
CY2012Q4	acfn	Computer Hardware And Software Accumulated Depreciation ComputerHardwareAndSoftwareAccumulatedDepreciation	759000	USD
CY2011Q4	acfn	Computer Hardware And Software Accumulated Depreciation ComputerHardwareAndSoftwareAccumulatedDepreciation	547000	USD
CY2011	acfn	Contributions To Superannuation Fund ContributionsToSuperannuationFund	146000	USD
CY2012	acfn	Contributions To Superannuation Fund ContributionsToSuperannuationFund	148000	USD
CY2010	acfn	Contributions To Superannuation Fund ContributionsToSuperannuationFund	87000	USD
CY2010Q4	acfn	Cost Method Investment Ownership Percentage CostMethodInvestmentOwnershipPercentage	0.057
CY2010Q4	acfn	Cost Method Investment Proceeds From Sale CostMethodInvestmentProceedsFromSale	1116000	USD
CY2012Q4	acfn	Cumulative Percentage Ownership After All Future Transactions CumulativePercentageOwnershipAfterAllFutureTransactions	0.944
CY2012Q4	acfn	Current Cumulative Product Sales Subject To Gridsense Royalty CurrentCumulativeProductSalesSubjectToGridsenseRoyalty	2180000	USD
CY2012Q4	acfn	Deferred Tax Assets Attributable To Investments And Asset Impairments DeferredTaxAssetsAttributableToInvestmentsAndAssetImpairments	0	USD
CY2011Q4	acfn	Deferred Tax Assets Attributable To Investments And Asset Impairments DeferredTaxAssetsAttributableToInvestmentsAndAssetImpairments	63000	USD
CY2012Q4	acfn	Deferred Tax Assets Attributable To Net Operating And Capital Loss Carryforwards DeferredTaxAssetsAttributableToNetOperatingAndCapitalLossCarryforwards	6972000	USD
CY2011Q4	acfn	Deferred Tax Assets Attributable To Net Operating And Capital Loss Carryforwards DeferredTaxAssetsAttributableToNetOperatingAndCapitalLossCarryforwards	2624000	USD
CY2012Q4	acfn	Deferred Tax Liabilities Attributable To Installment Sale Of Investment In Subsidiary DeferredTaxLiabilitiesAttributableToInstallmentSaleOfInvestmentInSubsidiary	0	USD
CY2011Q4	acfn	Deferred Tax Liabilities Attributable To Installment Sale Of Investment In Subsidiary DeferredTaxLiabilitiesAttributableToInstallmentSaleOfInvestmentInSubsidiary	-1434000	USD
CY2011Q4	acfn	Deferred Tax Liabilities Attributable To Revenue Recognition Timing Differences DeferredTaxLiabilitiesAttributableToRevenueRecognitionTimingDifferences	-539000	USD
CY2012Q4	acfn	Deferred Tax Liabilities Attributable To Revenue Recognition Timing Differences DeferredTaxLiabilitiesAttributableToRevenueRecognitionTimingDifferences	0	USD
CY2012	acfn	Depreciation And Amortization Reconciliation From Segment To Consolidated DepreciationAndAmortizationReconciliationFromSegmentToConsolidated	136000	USD
CY2010	acfn	Depreciation And Amortization Reconciliation From Segment To Consolidated DepreciationAndAmortizationReconciliationFromSegmentToConsolidated	25000	USD
CY2011	acfn	Depreciation And Amortization Reconciliation From Segment To Consolidated DepreciationAndAmortizationReconciliationFromSegmentToConsolidated	4000	USD
CY2012	acfn	Discount To Market Price Dividend Reinvestment Plan DiscountToMarketPriceDividendReinvestmentPlan	0.05
CY2012Q2	acfn	Dividend Reinvestment Plan Discount DividendReinvestmentPlanDiscount	0	USD
CY2012	acfn	Dividend Reinvestment Plan Discount DividendReinvestmentPlanDiscount	10000	USD
CY2012Q4	acfn	Dividend Reinvestment Plan Discount DividendReinvestmentPlanDiscount	6000	USD
CY2012Q3	acfn	Dividend Reinvestment Plan Discount DividendReinvestmentPlanDiscount	4000	USD
CY2011	acfn	Dividend Reinvestment Plan Discount DividendReinvestmentPlanDiscount	0	USD
CY2011Q4	acfn	Dividend Reinvestment Plan Discount DividendReinvestmentPlanDiscount	0	USD
CY2012Q4	acfn	Fair Value Disclosure Off Balance Sheet Risks Face Amount Liability Noncurrent FairValueDisclosureOffBalanceSheetRisksFaceAmountLiabilityNoncurrent	383000	USD
CY2012Q4	acfn	Fair Value Percentage Concentration Of Risk Unbilled Revenue FairValuePercentageConcentrationOfRiskUnbilledRevenue	0.70
CY2012Q4	acfn	Federal Net Operating Loss Carryforwards Subject To Expiration Date FederalNetOperatingLossCarryforwardsSubjectToExpirationDate	13596000	USD
CY2012Q4	acfn	Federal Net Operating Loss Carryforwards That Are Not Subject To Expiration Date FederalNetOperatingLossCarryforwardsThatAreNotSubjectToExpirationDate	0	USD
CY2012Q1	acfn	Dividend Reinvestment Plan Discount DividendReinvestmentPlanDiscount	0	USD
CY2011	acfn	Dividends Payable Paid In Following Period DividendsPayablePaidInFollowingPeriod	876000	USD
CY2011	acfn	Dsit Option Plan Modified Options Extended Expiration Date DsitOptionPlanModifiedOptionsExtendedExpirationDate	147770	shares
CY2011Q4	acfn	Equipment Accumulated Depreciation EquipmentAccumulatedDepreciation	367000	USD
CY2012Q4	acfn	Equipment Accumulated Depreciation EquipmentAccumulatedDepreciation	1111000	USD
CY2011	acfn	Escrow Deposit For Indemnification Claims EscrowDepositForIndemnificationClaims	5961000	USD
CY2010Q4	acfn	Estimated Fair Market Value Of Acquired Technology EstimatedFairMarketValueOfAcquiredTechnology	2565000	USD
CY2010Q2	acfn	Estimated Useful Life In Years Of Acquired Intellectual Property EstimatedUsefulLifeInYearsOfAcquiredIntellectualProperty	5	years
CY2010Q2	acfn	Estimated Useful Life In Years Of Acquired Non Compete Agreements EstimatedUsefulLifeInYearsOfAcquiredNonCompeteAgreements	P3Y
CY2010Q2	acfn	Estimated Useful Life In Years Of Acquired Non Compete Agreements EstimatedUsefulLifeInYearsOfAcquiredNonCompeteAgreements	P3Y
CY2012Q4	acfn	Excess Of Fair Value Of Reporting Unit Over Carrying Value ExcessOfFairValueOfReportingUnitOverCarryingValue	1100000	USD
CY2010	acfn	Exercise Of Options And Warrants ExerciseOfOptionsAndWarrants	220000	USD
CY2012	acfn	Exercise Of Options And Warrants ExerciseOfOptionsAndWarrants	1355000	USD
CY2011	acfn	Exercise Of Options And Warrants ExerciseOfOptionsAndWarrants	211000	USD
CY2010	acfn	Expenditure For Assets Reconciliation From Segment To Consolidated ExpenditureForAssetsReconciliationFromSegmentToConsolidated	28000	USD
CY2011	acfn	Expenditure For Assets Reconciliation From Segment To Consolidated ExpenditureForAssetsReconciliationFromSegmentToConsolidated	27000	USD
CY2012	acfn	Expenditure For Assets Reconciliation From Segment To Consolidated ExpenditureForAssetsReconciliationFromSegmentToConsolidated	297000	USD
CY2012	acfn	Expiring Dsit Warrants ExpiringDsitWarrants	0.10
CY2012Q4	acfn	Fair Value Concentration Of Risk Percentage Of Total Accounts Receivable FairValueConcentrationOfRiskPercentageOfTotalAccountsReceivable	0.37
CY2012Q4	acfn	Fair Value Concentration Of Risk Unbilled Revenue Number Of Customers FairValueConcentrationOfRiskUnbilledRevenueNumberOfCustomers	2
CY2012Q4	acfn	Fair Value Disclosure Off Balance Sheet Risks Face Amount Liability Current FairValueDisclosureOffBalanceSheetRisksFaceAmountLiabilityCurrent	2265000	USD
CY2011	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	-26000	USD
CY2010	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	-224000	USD
CY2012	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	57000	USD
CY2012Q3	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	-160000	USD
CY2012Q2	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	130000	USD
CY2011Q2	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	-100000	USD
CY2011Q3	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	262000	USD
CY2012Q4	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	110000	USD
CY2011Q1	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	-117000	USD
CY2011Q4	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	-71000	USD
CY2012Q1	acfn	Finance Income Expense Net FinanceIncomeExpenseNet	-23000	USD
CY2012Q4	acfn	Foreign Net Operating Loss Carryforward Subject To Expiration ForeignNetOperatingLossCarryforwardSubjectToExpiration	0	USD
CY2012Q4	acfn	Foreign Net Operating Loss Carryforwards Not Subject To Expiration ForeignNetOperatingLossCarryforwardsNotSubjectToExpiration	1872000	USD
CY2012Q4	acfn	Fully Diluted Ownership FullyDilutedOwnership	0.851
CY2012	acfn	Fully Diluted Ownership FullyDilutedOwnership	0.714
CY2012	acfn	Future Royalty Payment For License Agreement FutureRoyaltyPaymentForLicenseAgreement	0.10
CY2011	acfn	Gain As Result Of Deconsolidation Of Subsidiary GainAsResultOfDeconsolidationOfSubsidiary	0	USD
CY2010	acfn	Gain As Result Of Deconsolidation Of Subsidiary GainAsResultOfDeconsolidationOfSubsidiary	1834000	USD
CY2012	acfn	Gridsense Royalty Due On Certain Product Sales GridsenseRoyaltyDueOnCertainProductSales	0.06
CY2010Q2	acfn	Gridsense Technologies Finite Intangible Asset Acquired GridsenseTechnologiesFiniteIntangibleAssetAcquired	1793000	USD
CY2010Q2	acfn	Gridsense Technologies Finite Intangible Asset Acquired Useful Life GridsenseTechnologiesFiniteIntangibleAssetAcquiredUsefulLife	P11Y
CY2010Q2	acfn	Gridsense Trade Name Acquired Useful Life GridsenseTradeNameAcquiredUsefulLife	P15Y
CY2010	acfn	Impairment Of Companys Goodwill And Other Intangible Assets Related To Coreworx ImpairmentOfCompanysGoodwillAndOtherIntangibleAssetsRelatedToCoreworx	9474000	USD
CY2011	acfn	Increase In Liability For Employee Termination Benefits IncreaseInLiabilityForEmployeeTerminationBenefits	-390000	USD
CY2010	acfn	Increase In Liability For Employee Termination Benefits IncreaseInLiabilityForEmployeeTerminationBenefits	-385000	USD
CY2012	acfn	Increase In Liability For Employee Termination Benefits IncreaseInLiabilityForEmployeeTerminationBenefits	-573000	USD
CY2012Q3	acfn	Increase In Number Of Shares In Stock Option Plan IncreaseInNumberOfSharesInStockOptionPlan	1000000	shares
CY2012Q3	acfn	Increase In Shares In2006 Director Stock Option Plan IncreaseInSharesIn2006DirectorStockOptionPlan	200000	shares
CY2010	acfn	Incremental Common Shares Attributable To Warrants Outstanding IncrementalCommonSharesAttributableToWarrantsOutstanding	0	shares
CY2011	acfn	Incremental Common Shares Attributable To Warrants Outstanding IncrementalCommonSharesAttributableToWarrantsOutstanding	26000	shares
CY2012	acfn	Incremental Common Shares Attributable To Warrants Outstanding IncrementalCommonSharesAttributableToWarrantsOutstanding	0	shares
CY2010	acfn	Intangible Asset Acquired By Coalogix IntangibleAssetAcquiredByCoalogix	82000	USD
CY2012	acfn	Intangible Assets Acquired In Acquisition IntangibleAssetsAcquiredInAcquisition	5581000	USD
CY2012	acfn	Interest In Addition To Prime Rate InterestInAdditionToPrimeRate	0.009
CY2012	acfn	Interest Rate On Lines Of Credit Subject To Certain Formula InterestRateOnLinesOfCreditSubjectToCertainFormula	0.065
CY2010	acfn	Interest Rate On Loan Received From Gridsense Ceo InterestRateOnLoanReceivedFromGridsenseCeo	0.00
CY2010	acfn	Interest Rate On Loan Received From Gridsense Director InterestRateOnLoanReceivedFromGridsenseDirector	0.08
CY2012	acfn	Interest Rate To Be Added To Prime Rate InterestRateToBeAddedToPrimeRate	0.010
CY2012	acfn	Interest Rate To Be Added To Prime Rate On Lines Of Credit Being Used Or On Another Debt InterestRateToBeAddedToPrimeRateOnLinesOfCreditBeingUsedOrOnAnotherDebt	0.0325
CY2012	acfn	Inventory Write Off Gridsense InventoryWriteOffGridsense	349000	USD
CY2007Q3	acfn	Investment Commitment Maximum Amount InvestmentCommitmentMaximumAmount	5000000	USD
CY2007Q3	acfn	Investment Commitment Maximum Possible Period To Invest InvestmentCommitmentMaximumPossiblePeriodToInvest	P10Y
CY2011Q4	acfn	Israeli Prime Rate Per Annum IsraeliPrimeRatePerAnnum	0.0425
CY2012Q4	acfn	Israeli Prime Rate Per Annum IsraeliPrimeRatePerAnnum	0.0325
CY2012Q4	acfn	Leasehold Improvements Accumulated Depreciation LeaseholdImprovementsAccumulatedDepreciation	411000	USD
CY2011Q4	acfn	Leasehold Improvements Accumulated Depreciation LeaseholdImprovementsAccumulatedDepreciation	365000	USD
CY2012	acfn	Line Of Credit Facility Maximum Amount Outstanding During Period At Each Of Two Banks LineOfCreditFacilityMaximumAmountOutstandingDuringPeriodAtEachOfTwoBanks	536000	USD
CY2012	acfn	Loan Received From Gridsence Director LoanReceivedFromGridsenceDirector	75000	USD
CY2010	acfn	Loan Received From Gridsences Ceo LoanReceivedFromGridsencesCeo	50000	USD
CY2011Q4	acfn	Long Ived Assets United States LongIvedAssetsUnitedStates	350000	USD
CY2012Q4	acfn	Long Ived Assets United States LongIvedAssetsUnitedStates	602000	USD
CY2010Q4	acfn	Long Ived Assets United States LongIvedAssetsUnitedStates	141000	USD
CY2010Q4	acfn	Long Lived Assets Australia LongLivedAssetsAustralia	61000	USD
CY2012Q4	acfn	Long Lived Assets Australia LongLivedAssetsAustralia	43000	USD
CY2011Q4	acfn	Long Lived Assets Australia LongLivedAssetsAustralia	50000	USD
CY2010Q4	acfn	Long Lived Assets Israel LongLivedAssetsIsrael	288000	USD
CY2012Q4	acfn	Long Lived Assets Israel LongLivedAssetsIsrael	282000	USD
CY2011Q4	acfn	Long Lived Assets Israel LongLivedAssetsIsrael	235000	USD
CY2011	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	-1948000	USD
CY2012	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	0	USD
CY2010	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	-17969000	USD
CY2012Q1	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	0	USD
CY2011Q1	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	-836000	USD
CY2012Q3	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	0	USD
CY2012Q2	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	0	USD
CY2011Q2	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	-568000	USD
CY2012Q4	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	0	USD
CY2011Q3	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	-544000	USD
CY2011Q4	acfn	Loss From Discontinued Operations Net Of Tax LossFromDiscontinuedOperationsNetOfTax	0	USD
CY2010Q4	acfn	Maximum Amount Of Royalty Fee That Coreworx Would Pay Acorn Following Repayment Of Coreworx Debt To Acorn As Stipulated In Coreworx Sale Agreement MaximumAmountOfRoyaltyFeeThatCoreworxWouldPayAcornFollowingRepaymentOfCoreworxDebtToAcornAsStipulatedInCoreworxSaleAgreement	20000000	USD
CY2012	acfn	Maximum Amount That Can Be Borrowed By Gridsense Under Its Credit Facility At Any Time During Period MaximumAmountThatCanBeBorrowedByGridsenseUnderItsCreditFacilityAtAnyTimeDuringPeriod	1000000	USD
CY2012	acfn	Maximum Amount That Can Be Borrowed By Ussi Under Its Credit Facility At Any Time During Period MaximumAmountThatCanBeBorrowedByUssiUnderItsCreditFacilityAtAnyTimeDuringPeriod	1000000	USD
CY2012	acfn	Maximum Percentage Contribution To Superannuation Fund MaximumPercentageContributionToSuperannuationFund	0.09
CY2012	acfn	Minimum Royalty Payment For License Period MinimumRoyaltyPaymentForLicensePeriod	P10Y
CY2012	acfn	Minimum Sales Needed For Gridsense Royalty MinimumSalesNeededForGridsenseRoyalty	4000000	USD
CY2011	acfn	Net Gain After Tax On Sale Of Coalogix NetGainAfterTaxOnSaleOfCoalogix	31003000	USD
CY2010	acfn	Net Income Attributable To Nci In Dsit NetIncomeAttributableToNciInDsit	181000	USD
CY2012	acfn	Net Income Attributable To Nci In Dsit NetIncomeAttributableToNciInDsit	84000	USD
CY2011	acfn	Net Income Attributable To Nci In Dsit NetIncomeAttributableToNciInDsit	22000	USD
CY2012	acfn	Net Income Loss Before Income Taxes For Reportable Segments NetIncomeLossBeforeIncomeTaxesForReportableSegments	-14029000	USD
CY2010	acfn	Net Income Loss Before Income Taxes For Reportable Segments NetIncomeLossBeforeIncomeTaxesForReportableSegments	-2555000	USD
CY2011	acfn	Net Income Loss Before Income Taxes For Reportable Segments NetIncomeLossBeforeIncomeTaxesForReportableSegments	-4467000	USD
CY2011	acfn	Net Income Loss Before Non Controlling Interests NetIncomeLossBeforeNonControllingInterests	34320000	USD
CY2010	acfn	Net Income Loss Before Non Controlling Interests NetIncomeLossBeforeNonControllingInterests	-25750000	USD
CY2012	acfn	Net Income Loss Before Non Controlling Interests NetIncomeLossBeforeNonControllingInterests	-17735000	USD
CY2010	acfn	Net Loss Attributable To Nci In Ussi NetLossAttributableToNciInUssi	-776000	USD
CY2011	acfn	Net Loss Attributable To Nci In Ussi NetLossAttributableToNciInUssi	-571000	USD
CY2012	acfn	Net Loss Attributable To Nci In Ussi NetLossAttributableToNciInUssi	-1108000	USD
CY2010	acfn	Net Loss From Discontinued Operations Net Of Income Taxes Coalogix NetLossFromDiscontinuedOperationsNetOfIncomeTaxesCoalogix	-309000	USD
CY2011	acfn	Net Loss From Discontinued Operations Net Of Income Taxes Coalogix NetLossFromDiscontinuedOperationsNetOfIncomeTaxesCoalogix	-1948000	USD
CY2011	acfn	Net Loss From Discontinued Operations Net Of Income Taxes Coreworx NetLossFromDiscontinuedOperationsNetOfIncomeTaxesCoreworx	0	USD
CY2010	acfn	Net Loss From Discontinued Operations Net Of Income Taxes Coreworx NetLossFromDiscontinuedOperationsNetOfIncomeTaxesCoreworx	-19494000	USD
CY2010	acfn	Non Controlling Interests Acquired In Acquisition NonControllingInterestsAcquiredInAcquisition	3600000	USD
CY2010	acfn	Non Controlling Interests Share Of Coalogixs Net Loss NonControllingInterestsShareOfCoalogixsNetLoss	67000	USD
CY2011	acfn	Non Controlling Interests Share Of Coalogixs Net Loss NonControllingInterestsShareOfCoalogixsNetLoss	540000	USD
CY2010Q4	acfn	Number Of Coreworx Non Voting Shares Of Common Stock Issued To Acorn In Coreworx Sale Transaction NumberOfCoreworxNonVotingSharesOfCommonStockIssuedToAcornInCoreworxSaleTransaction	3625209	shares
CY2012Q4	acfn	Number Of Customers Concentration Of Receivables NumberOfCustomersConcentrationOfReceivables	1
CY2010Q2	acfn	Number Of Shares Issued In Consideration For Business Combination NumberOfSharesIssuedInConsiderationForBusinessCombination	1000000	shares
CY2012Q1	acfn	Omnimetrix Technologies OmnimetrixTechnologies	2319000	USD
CY2012	acfn	Other Operating Segment Net Income Loss Before Income Taxes OtherOperatingSegmentNetIncomeLossBeforeIncomeTaxes	-62000	USD
CY2011	acfn	Other Operating Segment Net Income Loss Before Income Taxes OtherOperatingSegmentNetIncomeLossBeforeIncomeTaxes	298000	USD
CY2010	acfn	Other Operating Segment Net Income Loss Before Income Taxes OtherOperatingSegmentNetIncomeLossBeforeIncomeTaxes	77000	USD
CY2012	acfn	Other Operational Segment Revenues OtherOperationalSegmentRevenues	1562000	USD
CY2011	acfn	Other Operational Segment Revenues OtherOperationalSegmentRevenues	1389000	USD
CY2010	acfn	Other Operational Segment Revenues OtherOperationalSegmentRevenues	1278000	USD
CY2011Q1	acfn	Owenership Percentage OwenershipPercentage	0.25
CY2012	acfn	Parent Percentage Of Ownership In Subsidiary Following Second Closing In Accordance With Ussi Purchase Agreement ParentPercentageOfOwnershipInSubsidiaryFollowingSecondClosingInAccordanceWithUssiPurchaseAgreement	0.92
CY2012	acfn	Payment To Acquire Omnimetrix Net Of Cash Acquired PaymentToAcquireOmnimetrixNetOfCashAcquired	-7835000	USD
CY2011	acfn	Payment To Acquire Omnimetrix Net Of Cash Acquired PaymentToAcquireOmnimetrixNetOfCashAcquired	0	USD
CY2010	acfn	Payment To Acquire Omnimetrix Net Of Cash Acquired PaymentToAcquireOmnimetrixNetOfCashAcquired	0	USD
CY2010	acfn	Payments To Acquire Cost Method Investments PaymentsToAcquireCostMethodInvestments	-900000	USD
CY2011	acfn	Payments To Acquire Cost Method Investments PaymentsToAcquireCostMethodInvestments	0	USD
CY2012	acfn	Payments To Acquire Cost Method Investments PaymentsToAcquireCostMethodInvestments	0	USD
CY2012Q4	acfn	Percentage Excess Of Fair Value Of Reporting Unit Over Carrying Value PercentageExcessOfFairValueOfReportingUnitOverCarryingValue	0.17
CY2010Q4	acfn	Percentage Of Acorn Holdings In Coreworx Newly Issued And Nonvoting Shares Pursuant To Sale Transaction PercentageOfAcornHoldingsInCoreworxNewlyIssuedAndNonvotingSharesPursuantToSaleTransaction	0.10
CY2010Q4	acfn	Percentage Of Coreworx Current Common Stock Outstanding Represented By Warrant Granted To Acorn PercentageOfCoreworxCurrentCommonStockOutstandingRepresentedByWarrantGrantedToAcorn	0.10
CY2010Q4	acfn	Percentage Of Coreworx Gross Revenues That Coreworx Would Pay Acorn As Royalty Fee Following Repayment Of Coreworx Debt To Acorn PercentageOfCoreworxGrossRevenuesThatCoreworxWouldPayAcornAsRoyaltyFeeFollowingRepaymentOfCoreworxDebtToAcorn	0.04
CY2012	acfn	Percentage Of Deduction Of Certain Repatriated Foreign Earnings PercentageOfDeductionOfCertainRepatriatedForeignEarnings	0.85
CY2010Q2	acfn	Percentage Of Outstanding Shares From Total Outstanding Shares Acquired In Business Acquisition PercentageOfOutstandingSharesFromTotalOutstandingSharesAcquiredInBusinessAcquisition	0.70
CY2012	acfn	Period In Months Of Service Advance Payment Received PeriodInMonthsOfServiceAdvancePaymentReceived	12
CY2012	acfn	Period In Years Of Warranty Granted To Companys Products Or Projects Maximum PeriodInYearsOfWarrantyGrantedToCompanysProductsOrProjectsMaximum	P2Y
CY2012	acfn	Period Of Bird Foundation Funding PeriodOfBirdFoundationFunding	P24M
CY2010Q4	acfn	Placement Agent Fee PlacementAgentFee	0.07
CY2011	acfn	Potential Investment Amount Through Exercise Of Acorns Option To Invest In Ussi PotentialInvestmentAmountThroughExerciseOfAcornsOptionToInvestInUssi	1500000	USD
CY2012Q4	acfn	Preferred Stock Purchase Ussi PreferredStockPurchaseUssi	2500000	USD
CY2012	acfn	Preferred Stock Purchase Ussi PreferredStockPurchaseUssi	2500000	USD
CY2012Q3	acfn	Preferred Stock Purchase Ussi PreferredStockPurchaseUssi	2500000	USD
CY2012	acfn	Preferred Stock Purchase Ussi April2012 PreferredStockPurchaseUssiApril2012	2250000	USD
CY2012Q4	acfn	Prime Rate PrimeRate	0.035
CY2012	acfn	Proceeds From Payments For Advances From Coalogix Prior To Sale ProceedsFromPaymentsForAdvancesFromCoalogixPriorToSale	0	USD
CY2010	acfn	Proceeds From Payments For Advances From Coalogix Prior To Sale ProceedsFromPaymentsForAdvancesFromCoalogixPriorToSale	0	USD
CY2011	acfn	Proceeds From Payments For Advances From Coalogix Prior To Sale ProceedsFromPaymentsForAdvancesFromCoalogixPriorToSale	-278000	USD
CY2010	acfn	Proceeds From Payments For Escrow Deposit From Coalogix Sale ProceedsFromPaymentsForEscrowDepositFromCoalogixSale	0	USD
CY2011	acfn	Proceeds From Payments For Escrow Deposit From Coalogix Sale ProceedsFromPaymentsForEscrowDepositFromCoalogixSale	-6308000	USD
CY2012	acfn	Proceeds From Payments For Escrow Deposit From Coalogix Sale ProceedsFromPaymentsForEscrowDepositFromCoalogixSale	0	USD
CY2011	acfn	Proceeds From Sale Of Coalogix ProceedsFromSaleOfCoalogix	61915000	USD
CY2012	acfn	Proceeds From Sale Of Coalogix Net Of Coalogix Cash ProceedsFromSaleOfCoalogixNetOfCoalogixCash	0	USD
CY2010	acfn	Proceeds From Sale Of Coalogix Net Of Coalogix Cash ProceedsFromSaleOfCoalogixNetOfCoalogixCash	0	USD
CY2011	acfn	Proceeds From Sale Of Coalogix Net Of Coalogix Cash ProceedsFromSaleOfCoalogixNetOfCoalogixCash	62117000	USD
CY2011Q1	acfn	Proceeds From Sale Of Investee Company ProceedsFromSaleOfInvesteeCompany	492000	USD
CY2011Q1	acfn	Proceeds From Sale Of Investee Company Net Of Taxes Withheld ProceedsFromSaleOfInvesteeCompanyNetOfTaxesWithheld	454000	USD
CY2011	acfn	Proceeds To Buyers From Sale Of100 Of Coalogix ProceedsToBuyersFromSaleOf100OfCoalogix	101000000	USD
CY2011Q4	acfn	Property Plant And Equipment Computer Hardware And Software Gross PropertyPlantAndEquipmentComputerHardwareAndSoftwareGross	779000	USD
CY2012Q4	acfn	Property Plant And Equipment Computer Hardware And Software Gross PropertyPlantAndEquipmentComputerHardwareAndSoftwareGross	1081000	USD
CY2011Q4	acfn	Property Plant And Equipment Vehicles Gross PropertyPlantAndEquipmentVehiclesGross	40000	USD
CY2012Q4	acfn	Property Plant And Equipment Vehicles Gross PropertyPlantAndEquipmentVehiclesGross	43000	USD
CY2012Q2	acfn	Regular Dividend Paid Per Share RegularDividendPaidPerShare	0.035
CY2012Q1	acfn	Regular Dividend Paid Per Share RegularDividendPaidPerShare	0.035
CY2012Q4	acfn	Regular Dividend Paid Per Share RegularDividendPaidPerShare	0.035
CY2012Q3	acfn	Regular Dividend Paid Per Share RegularDividendPaidPerShare	0.035
CY2012	acfn	Regular Dividend Paid Per Share RegularDividendPaidPerShare	0.14
CY2011Q4	acfn	Regular Dividend Paid Per Share RegularDividendPaidPerShare	0.035
CY2011	acfn	Regular Dividend Paid Per Share RegularDividendPaidPerShare	0.035
CY2011	acfn	Regular Quarterly Dividend Declared RegularQuarterlyDividendDeclared	0.035
CY2010	acfn	Release Of Escrow Deposits ReleaseOfEscrowDeposits	0	USD
CY2012	acfn	Release Of Escrow Deposits ReleaseOfEscrowDeposits	5961000	USD
CY2011	acfn	Release Of Escrow Deposits ReleaseOfEscrowDeposits	347000	USD
CY2010Q4	acfn	Remaining Balance Of Indebtedness Owned By Coreworx To Parent Company After Certain Deduction As Stipulated In Sale Of Coreworx Agreement RemainingBalanceOfIndebtednessOwnedByCoreworxToParentCompanyAfterCertainDeductionAsStipulatedInSaleOfCoreworxAgreement	4000000	USD
CY2010Q4	acfn	Remaining Balance Of Indebtedness Owned By Coreworx To Parent Company Prior To Sale Of Coreworx RemainingBalanceOfIndebtednessOwnedByCoreworxToParentCompanyPriorToSaleOfCoreworx	5436000	USD
CY2010Q4	acfn	Remaining Contractual Term Warrants RemainingContractualTermWarrants	P5Y
CY2012	acfn	Research And Development Arrangement Bird Foundation Total Grant ResearchAndDevelopmentArrangementBirdFoundationTotalGrant	900	USD
CY2012Q4	acfn	Restricted Deposit Current With Repect To Guarantees RestrictedDepositCurrentWithRepectToGuarantees	699000	USD
CY2011	acfn	Revenues Asia Based Customers RevenuesAsiaBasedCustomers	6280000	USD
CY2010	acfn	Revenues Asia Based Customers RevenuesAsiaBasedCustomers	5558000	USD
CY2012	acfn	Revenues Asia Based Customers RevenuesAsiaBasedCustomers	10010000	USD
CY2011	acfn	Revenues Customers Based In Other Geographic Locations RevenuesCustomersBasedInOtherGeographicLocations	334000	USD
CY2012	acfn	Revenues Customers Based In Other Geographic Locations RevenuesCustomersBasedInOtherGeographicLocations	558000	USD
CY2010	acfn	Revenues Customers Based In Other Geographic Locations RevenuesCustomersBasedInOtherGeographicLocations	249000	USD
CY2011	acfn	Revenues Generated By Coalogix During Applicable Period And Presented In Discontinued Operations RevenuesGeneratedByCoalogixDuringApplicablePeriodAndPresentedInDiscontinuedOperations	12084000	USD
CY2010	acfn	Revenues Generated By Coalogix During Applicable Period And Presented In Discontinued Operations RevenuesGeneratedByCoalogixDuringApplicablePeriodAndPresentedInDiscontinuedOperations	21450000	USD
CY2010	acfn	Revenues Generated By Coreworx During Applicable Period And Presented In Discontinued Operations RevenuesGeneratedByCoreworxDuringApplicablePeriodAndPresentedInDiscontinuedOperations	3200000	USD
CY2011	acfn	Revenues Generated By Coreworx During Applicable Period And Presented In Discontinued Operations RevenuesGeneratedByCoreworxDuringApplicablePeriodAndPresentedInDiscontinuedOperations	0	USD
CY2012	acfn	Revenues Israel Based Customers RevenuesIsraelBasedCustomers	3773000	USD
CY2010	acfn	Revenues Israel Based Customers RevenuesIsraelBasedCustomers	5830000	USD
CY2011	acfn	Revenues Israel Based Customers RevenuesIsraelBasedCustomers	4268000	USD
CY2011	acfn	Revenues Oceania Based Customers RevenuesOceaniaBasedCustomers	3190000	USD
CY2010	acfn	Revenues Oceania Based Customers RevenuesOceaniaBasedCustomers	1489000	USD
CY2012	acfn	Revenues Oceania Based Customers RevenuesOceaniaBasedCustomers	1734000	USD
CY2010	acfn	Revenues United States Customers RevenuesUnitedStatesCustomers	1118000	USD
CY2011	acfn	Revenues United States Customers RevenuesUnitedStatesCustomers	4856000	USD
CY2012	acfn	Revenues United States Customers RevenuesUnitedStatesCustomers	3344000	USD
CY2012	acfn	Segment Depreciation And Amortization SegmentDepreciationAndAmortization	1270000	USD
CY2010	acfn	Segment Depreciation And Amortization SegmentDepreciationAndAmortization	578000	USD
CY2011	acfn	Segment Depreciation And Amortization SegmentDepreciationAndAmortization	847000	USD
CY2011	acfn	Segment Gross Profit Loss SegmentGrossProfitLoss	6913000	USD
CY2010	acfn	Segment Gross Profit Loss SegmentGrossProfitLoss	6044000	USD
CY2012	acfn	Segment Gross Profit Loss SegmentGrossProfitLoss	5203000	USD
CY2012	acfn	Segment Net Income Loss Before Income Taxes SegmentNetIncomeLossBeforeIncomeTaxes	-14091000	USD
CY2010	acfn	Segment Net Income Loss Before Income Taxes SegmentNetIncomeLossBeforeIncomeTaxes	-2478000	USD
CY2011	acfn	Segment Net Income Loss Before Income Taxes SegmentNetIncomeLossBeforeIncomeTaxes	-4169000	USD
CY2011	acfn	Segment Share Based Compensation Expense SegmentShareBasedCompensationExpense	0	USD
CY2012	acfn	Segment Share Based Compensation Expense SegmentShareBasedCompensationExpense	323000	USD
CY2010	acfn	Segment Share Based Compensation Expense SegmentShareBasedCompensationExpense	42000	USD
CY2011Q4	acfn	Severance Assets SeveranceAssets	2620000	USD
CY2012Q4	acfn	Severance Assets SeveranceAssets	3165000	USD
CY2011	acfn	Severance Pay Contributions To Dedicated Funds SeverancePayContributionsToDedicatedFunds	322000	USD
CY2010	acfn	Severance Pay Contributions To Dedicated Funds SeverancePayContributionsToDedicatedFunds	285000	USD
CY2012	acfn	Severance Pay Contributions To Dedicated Funds SeverancePayContributionsToDedicatedFunds	347000	USD
CY2012Q4	acfn	Severance Pay Contributions To Funds Expected In Next Fiscal Year SeverancePayContributionsToFundsExpectedInNextFiscalYear	380000	USD
CY2012Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant2006 Director Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant2006DirectorPlan	201667	shares
CY2010Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exerciseable Number Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExerciseableNumberDsitOptionPlan	0	shares
CY2011Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exerciseable Number Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExerciseableNumberDsitOptionPlan	0	shares
CY2012Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exerciseable Number Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExerciseableNumberDsitOptionPlan	0	shares
CY2012Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exerciseable Number Ussi Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExerciseableNumberUssiOptionPlan	322337	shares
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodRelatedParties	159779	shares
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodRelatedParties	67500	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodRelatedParties	199697	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodDsitOptionPlan	0	shares
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodDsitOptionPlan	0	shares
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodDsitOptionPlan	0	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Ussi Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodUssiOptionPlan	0	shares
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Total Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodTotalDsitOptionPlan	4630	shares
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Total Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodTotalDsitOptionPlan	0	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Total Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodTotalDsitOptionPlan	2060	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Total Ussi Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodTotalUssiOptionPlan	-5000	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price Total Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePriceTotalDsitOptionPlan	2.51
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price Total Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePriceTotalDsitOptionPlan	1.09
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price Total Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePriceTotalDsitOptionPlan	0
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price Total Ussi Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePriceTotalUssiOptionPlan	1.72
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodRelatedParties	120000	shares
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodRelatedParties	351221	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodRelatedParties	127803	shares
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossDsitOptionPlan	0	shares
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossDsitOptionPlan	93054	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossDsitOptionPlan	0	shares
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodRelatedParties	141666	shares
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodRelatedParties	95000	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodRelatedParties	211898	shares
CY2010Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Held At End Of Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsHeldAtEndOfPeriodRelatedParties	1574665	shares
CY2012Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Held At End Of Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsHeldAtEndOfPeriodRelatedParties	1134397	shares
CY2011Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Held At End Of Period Related Parties ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsHeldAtEndOfPeriodRelatedParties	1199999	shares
CY2010	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Net Exercise In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNetExerciseInPeriod	0	shares
CY2012	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Net Exercise In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNetExerciseInPeriod	250000	shares
CY2011	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Net Exercise In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNetExerciseInPeriod	452332	shares
CY2012Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberDsitOptionPlan	238764	shares
CY2010Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberDsitOptionPlan	152400	shares
CY2009Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberDsitOptionPlan	152400	shares
CY2011Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberDsitOptionPlan	240824	shares
CY2011Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Ussi Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberUssiOptionPlan	0	shares
CY2012Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Ussi Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberUssiOptionPlan	632375	shares
CY2011Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceDsitOptionPlan	1.67
CY2012Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceDsitOptionPlan	1.69
CY2010Q4	acfn	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Dsit Option Plan ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceDsitOptionPlan	1.18
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CY2011	acfn	Share Based Compensation Expense From Non Employee Grants In Selling General And Administrative Expense ShareBasedCompensationExpenseFromNonEmployeeGrantsInSellingGeneralAndAdministrativeExpense	87000	USD
CY2012	acfn	Share Based Compensation Expense From Non Employee Grants In Selling General And Administrative Expense ShareBasedCompensationExpenseFromNonEmployeeGrantsInSellingGeneralAndAdministrativeExpense	133000	USD
CY2010	acfn	Share Based Compensation Expense From Non Employee Grants In Selling General And Administrative Expense ShareBasedCompensationExpenseFromNonEmployeeGrantsInSellingGeneralAndAdministrativeExpense	139000	USD
CY2012	acfn	Share Based Compensation Expense In Research And Development Expense ShareBasedCompensationExpenseInResearchAndDevelopmentExpense	81000	USD
CY2010	acfn	Share Based Compensation Expense In Research And Development Expense ShareBasedCompensationExpenseInResearchAndDevelopmentExpense	0	USD
CY2011	acfn	Share Based Compensation Expense In Research And Development Expense ShareBasedCompensationExpenseInResearchAndDevelopmentExpense	0	USD
CY2011	acfn	Share Based Compensation Expense In Selling General And Administrative Expense ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpense	458000	USD
CY2012	acfn	Share Based Compensation Expense In Selling General And Administrative Expense ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpense	774000	USD
CY2010	acfn	Share Based Compensation Expense In Selling General And Administrative Expense ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpense	690000	USD
CY2012	acfn	Share Based Compensation Expense In Selling General And Administrative Expense Dec2012 Option Grant ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpenseDec2012OptionGrant	18000	USD
CY2011	acfn	Share Based Compensation Expense In Selling General And Administrative Expense Jan2010 Option Grant ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpenseJan2010OptionGrant	1000	USD
CY2010	acfn	Share Based Compensation Expense In Selling General And Administrative Expense Jan2010 Option Grant ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpenseJan2010OptionGrant	124000	USD
CY2012	acfn	Share Based Compensation Expense In Selling General And Administrative Expense Jan2012 Option Grant ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpenseJan2012OptionGrant	115000	USD
CY2011	acfn	Share Based Compensation Expense In Selling General And Administrative Expense Oct2011 Option Grant ShareBasedCompensationExpenseInSellingGeneralAndAdministrativeExpenseOct2011OptionGrant	79000	USD
CY2010	acfn	Share Based Compensation Expense Included In Loss From Discontinued Operations From Coalogix ShareBasedCompensationExpenseIncludedInLossFromDiscontinuedOperationsFromCoalogix	440000	USD
CY2011	acfn	Share Based Compensation Expense Included In Loss From Discontinued Operations From Coalogix ShareBasedCompensationExpenseIncludedInLossFromDiscontinuedOperationsFromCoalogix	176000	USD
CY2010	acfn	Share Based Compensation Expense Included In Loss From Discontinued Operations From Coreworx ShareBasedCompensationExpenseIncludedInLossFromDiscontinuedOperationsFromCoreworx	339000	USD
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CY2012	acfn	Shares Available Under Dividend Reinvestment Plan SharesAvailableUnderDividendReinvestmentPlan	600000000	shares
CY2010	acfn	Shares Issued In Acquisition Of Gridsense SharesIssuedInAcquisitionOfGridsense	1867000	USD
CY2010Q4	acfn	Shares Issued In December Capital Raise SharesIssuedInDecemberCapitalRaise	1150000	shares
CY2010	acfn	Shares Issued In December Capital Raise Net Of Transaction Costs Value SharesIssuedInDecemberCapitalRaiseNetOfTransactionCostsValue	3709000	USD
CY2010Q1	acfn	Shares Issued In March Capital Raise SharesIssuedInMarchCapitalRaise	2231818	shares
CY2011	acfn	Special Dividend Declared SpecialDividendDeclared	0.05
CY2012Q4	acfn	Special Dividend Paid Per Share SpecialDividendPaidPerShare	0
CY2011Q4	acfn	Special Dividend Paid Per Share SpecialDividendPaidPerShare	0
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CY2011	acfn	Special Dividend Paid Per Share SpecialDividendPaidPerShare	0
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CY2012Q4	acfn	State Net Operating Loss Carryforwards Subject To Expiration StateNetOperatingLossCarryforwardsSubjectToExpiration	21163000	USD
CY2012Q4	acfn	State Net Operating Loss Carryforwards That Are Not Subject To Expiration Date StateNetOperatingLossCarryforwardsThatAreNotSubjectToExpirationDate	0	USD
CY2010	acfn	Stock Compensation In Unallocated Expenses StockCompensationInUnallocatedExpenses	648000	USD
CY2011	acfn	Stock Compensation In Unallocated Expenses StockCompensationInUnallocatedExpenses	458000	USD
CY2012	acfn	Stock Compensation In Unallocated Expenses StockCompensationInUnallocatedExpenses	532000	USD
CY2011	acfn	Stock Option Compensation Of Subsidiaries StockOptionCompensationOfSubsidiaries	176000	USD
CY2012	acfn	Stock Option Compensation Of Subsidiaries StockOptionCompensationOfSubsidiaries	323000	USD
CY2010	acfn	Stock Option Compensation Of Subsidiaries StockOptionCompensationOfSubsidiaries	779000	USD
CY2012	acfn	Subsidiary Definition Minimum Percentage Ownership SubsidiaryDefinitionMinimumPercentageOwnership	0.50
CY2011	acfn	Tax Benefit Recorded With Respect To Gain On Sale Of Coalogix TaxBenefitRecordedWithRespectToGainOnSaleOfCoalogix	14571000	USD
CY2011	acfn	Tax Expense On Sale Of Coalogix TaxExpenseOnSaleOfCoalogix	15971000	USD
CY2012	acfn	Tax Rate Applicable For2009 Taxable Income Of Companys Israeli Subsidiaries TaxRateApplicableFor2009TaxableIncomeOfCompanysIsraeliSubsidiaries	0.26
CY2012	acfn	Tax Rate Applicable For2010 And Thereafter For Taxable Income Of Companys Israeli Subsidiaries TaxRateApplicableFor2010AndThereafterForTaxableIncomeOfCompanysIsraeliSubsidiaries	0.25
CY2012	acfn	Tax Rate For2008 Taxable Income TaxRateFor2008TaxableIncome	0.27
CY2012	acfn	Tax Rate For2011 For Israeli Subsidiaries Stipulated In Israel Economic Efficiency Law TaxRateFor2011ForIsraeliSubsidiariesStipulatedInIsraelEconomicEfficiencyLaw	0.24
CY2012	acfn	Tax Rate For2012 And Thereafter For Israeli Subsidiaries As Stipulated In Taxation Chapter In Report Of Committee On Social Economic Change And Adopted By Government Of Israel TaxRateFor2012AndThereafterForIsraeliSubsidiariesAsStipulatedInTaxationChapterInReportOfCommitteeOnSocialEconomicChangeAndAdoptedByGovernmentOfIsrael	0.25
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CY2012	acfn	Tax Rate For2013 For Israeli Subsidiaries Stipulated In Israel Economic Efficiency Law TaxRateFor2013ForIsraeliSubsidiariesStipulatedInIsraelEconomicEfficiencyLaw	0.22
CY2012	acfn	Tax Rate For2014 For Israeli Subsidiaries Stipulated In Israel Economic Efficiency Law TaxRateFor2014ForIsraeliSubsidiariesStipulatedInIsraelEconomicEfficiencyLaw	0.21
CY2012	acfn	Tax Rate For2015 For Israeli Subsidiaries Stipulated In Israel Economic Efficiency Law TaxRateFor2015ForIsraeliSubsidiariesStipulatedInIsraelEconomicEfficiencyLaw	0.20
CY2012	acfn	Tax Rate For2016 And Thereafter For Israeli Subsidiaries Stipulated In Israel Economic Efficiency Law TaxRateFor2016AndThereafterForIsraeliSubsidiariesStipulatedInIsraelEconomicEfficiencyLaw	0.18
CY2011	acfn	This Element Represents Applicable Amount Of Income Taxes Or Benefit Realized On Gain Loss On Sale Of Investments Or Other Assets During Reporting Period ThisElementRepresentsApplicableAmountOfIncomeTaxesOrBenefitRealizedOnGainLossOnSaleOfInvestmentsOrOtherAssetsDuringReportingPeriod	34000	USD
CY2012Q1	acfn	Total Dividend Paid Cash And Shares TotalDividendPaidCashAndShares	1496000	USD
CY2011Q4	acfn	Total Dividend Paid Cash And Shares TotalDividendPaidCashAndShares	613000	USD
CY2012Q2	acfn	Total Dividend Paid Cash And Shares TotalDividendPaidCashAndShares	627000	USD
CY2011	acfn	Total Dividend Paid Cash And Shares TotalDividendPaidCashAndShares	613000	USD
CY2012	acfn	Total Dividend Paid Cash And Shares TotalDividendPaidCashAndShares	3383000	USD
CY2012Q3	acfn	Total Dividend Paid Cash And Shares TotalDividendPaidCashAndShares	628000	USD
CY2012Q4	acfn	Total Dividend Paid Cash And Shares TotalDividendPaidCashAndShares	632000	USD
CY2012Q4	acfn	Total Federal Net Operating Loss Carryforward TotalFederalNetOperatingLossCarryforward	13596000	USD
CY2012Q4	acfn	Total Foreign Net Operating Loss Carryforwards TotalForeignNetOperatingLossCarryforwards	1872000	USD
CY2011	acfn	Total Gain On Sale Of Coalogix Before Taxes TotalGainOnSaleOfCoalogixBeforeTaxes	46974000	USD
CY2011	acfn	Total Revenues From Discontinued Operations TotalRevenuesFromDiscontinuedOperations	12084000	USD
CY2010	acfn	Total Revenues From Discontinued Operations TotalRevenuesFromDiscontinuedOperations	24650000	USD
CY2012Q4	acfn	Total State Net Operating Loss Carryforwards TotalStateNetOperatingLossCarryforwards	21163000	USD
CY2010	acfn	Treasury Shares Issued In Acquisition TreasurySharesIssuedInAcquisition	0	USD
CY2011Q4	acfn	Unallocated Assets Corporate Headquarters UnallocatedAssetsCorporateHeadquarters	57999000	USD
CY2012Q4	acfn	Unallocated Assets Corporate Headquarters UnallocatedAssetsCorporateHeadquarters	24518000	USD
CY2010Q4	acfn	Unallocated Assets Corporate Headquarters UnallocatedAssetsCorporateHeadquarters	6639000	USD
CY2012Q4	acfn	Unallocated Assets Dsit Headquarters UnallocatedAssetsDsitHeadquarters	15151000	USD
CY2011Q4	acfn	Unallocated Assets Dsit Headquarters UnallocatedAssetsDsitHeadquarters	13569000	USD
CY2010Q4	acfn	Unallocated Assets Dsit Headquarters UnallocatedAssetsDsitHeadquarters	12643000	USD
CY2011Q4	acfn	Unallocated Assets Omnimetrix Headquarters UnallocatedAssetsOmnimetrixHeadquarters	0	USD
CY2012Q4	acfn	Unallocated Assets Omnimetrix Headquarters UnallocatedAssetsOmnimetrixHeadquarters	2030000	USD
CY2010Q4	acfn	Unallocated Assets Omnimetrix Headquarters UnallocatedAssetsOmnimetrixHeadquarters	0	USD
CY2010	acfn	Unallocated Corporate Segment Costs UnallocatedCorporateSegmentCosts	-4290000	USD
CY2012	acfn	Unallocated Corporate Segment Costs UnallocatedCorporateSegmentCosts	-5114000	USD
CY2011	acfn	Unallocated Corporate Segment Costs UnallocatedCorporateSegmentCosts	-3891000	USD
CY2012	acfn	Unallocated Segment Costs UnallocatedSegmentCosts	-1486000	USD
CY2010	acfn	Unallocated Segment Costs UnallocatedSegmentCosts	17000	USD
CY2011	acfn	Unallocated Segment Costs UnallocatedSegmentCosts	0	USD
CY2011	acfn	Unamortized Balance Of Intangible Asset Acquired By Coalogix UnamortizedBalanceOfIntangibleAssetAcquiredByCoalogix	74000	USD
CY2012Q4	acfn	Ussi Amount Borrowed UssiAmountBorrowed	0	USD
CY2012	acfn	Ussi Options Exercise Price Per Share UssiOptionsExercisePricePerShare	1.72
CY2012	acfn	Ussi Options Granted UssiOptionsGranted	637375	shares
CY2010Q4	acfn	Value Of Common Stock Used To Acquire Shares Of Subsidiary ValueOfCommonStockUsedToAcquireSharesOfSubsidiary	2229000	USD
CY2010	acfn	Value Of Entity Shares Issued In Acquisition ValueOfEntitySharesIssuedInAcquisition	1867000	USD
CY2012Q4	acfn	Vehicles Accumulated Depreciation VehiclesAccumulatedDepreciation	34000	USD
CY2011Q4	acfn	Vehicles Accumulated Depreciation VehiclesAccumulatedDepreciation	15000	USD
	acfn	Warrants Forfeited In Cashless Exercise WarrantsForfeitedInCashlessExercise	15248	shares
CY2011	acfn	Warrants Forfeited Or Expired WarrantsForfeitedOrExpired	0	shares
CY2012	acfn	Warrants Forfeited Or Expired WarrantsForfeitedOrExpired	15248	shares
CY2010	acfn	Warrants Forfeited Or Expired WarrantsForfeitedOrExpired	0	shares
CY2010Q4	acfn	Warrants Issued In Capital Raise WarrantsIssuedInCapitalRaise	80500	shares
CY2010Q2	acfn	Weighted Average Estimated Useful Life In Years Of Acquired Customer Relationships WeightedAverageEstimatedUsefulLifeInYearsOfAcquiredCustomerRelationships	P10Y
CY2010Q4	acfn	Weighted Average Estimated Useful Life In Years Of Acquired Technology WeightedAverageEstimatedUsefulLifeInYearsOfAcquiredTechnology	20	years
	acfn	Weighted Average Exercise Price Cashless Exercise WeightedAverageExercisePriceCashlessExercise	3.68
CY2011	acfn	Weighted Average Exercise Price Of Options Exercised Related Parties WeightedAverageExercisePriceOfOptionsExercisedRelatedParties	2.64
CY2010	acfn	Weighted Average Exercise Price Of Options Exercised Related Parties WeightedAverageExercisePriceOfOptionsExercisedRelatedParties	2.36
CY2012	acfn	Weighted Average Exercise Price Of Options Exercised Related Parties WeightedAverageExercisePriceOfOptionsExercisedRelatedParties	3.12
CY2010	acfn	Weighted Average Exercise Price Of Options Forfeited Related Parties WeightedAverageExercisePriceOfOptionsForfeitedRelatedParties	6.13
CY2012	acfn	Weighted Average Exercise Price Of Options Forfeited Related Parties WeightedAverageExercisePriceOfOptionsForfeitedRelatedParties	5.75
CY2011	acfn	Weighted Average Exercise Price Of Options Forfeited Related Parties WeightedAverageExercisePriceOfOptionsForfeitedRelatedParties	3.00
CY2011	acfn	Weighted Average Exercise Price Of Options Granted Related Parties WeightedAverageExercisePriceOfOptionsGrantedRelatedParties	4.51
CY2012	acfn	Weighted Average Exercise Price Of Options Granted Related Parties WeightedAverageExercisePriceOfOptionsGrantedRelatedParties	8.02
CY2010	acfn	Weighted Average Exercise Price Of Options Granted Related Parties WeightedAverageExercisePriceOfOptionsGrantedRelatedParties	4.82
CY2012Q4	acfn	Weighted Average Exercise Price Of Options Held Related Parties WeightedAverageExercisePriceOfOptionsHeldRelatedParties	4.95
CY2011Q4	acfn	Weighted Average Exercise Price Of Options Held Related Parties WeightedAverageExercisePriceOfOptionsHeldRelatedParties	4.13
CY2010Q4	acfn	Weighted Average Exercise Price Of Options Held Related Parties WeightedAverageExercisePriceOfOptionsHeldRelatedParties	3.69
CY2011	acfn	Weighted Average Exercise Price Of Warrants Exercised WeightedAverageExercisePriceOfWarrantsExercised	0.00
CY2012	acfn	Weighted Average Exercise Price Of Warrants Exercised WeightedAverageExercisePriceOfWarrantsExercised	4.35
CY2010	acfn	Weighted Average Exercise Price Of Warrants Exercised WeightedAverageExercisePriceOfWarrantsExercised	4.50
CY2011	acfn	Working Capital Adjustment WorkingCapitalAdjustment	485000	USD
CY2011	acfn	Working Capital Escrow Deposit WorkingCapitalEscrowDeposit	347000	USD
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0000880984
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	18071560	shares
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2012Q2	dei	Entity Public Float EntityPublicFloat	139300000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	ACORN ENERGY, INC.
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2010Q4	invest	Investment Warrants Exercise Price InvestmentWarrantsExercisePrice	3.68
CY2012	invest	Investment Warrants Exercise Price InvestmentWarrantsExercisePrice	0.00
CY2011	invest	Investment Warrants Exercise Price InvestmentWarrantsExercisePrice	0.00
CY2010	invest	Investment Warrants Exercise Price InvestmentWarrantsExercisePrice	3.68

Files In Submission

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$ACFN
ACORN ENERGY, INC. Stock $acfn

2013 Q1 Form 10-K Financial Statement

#000088098413000004 Filed on March 18, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ACFN ACORN ENERGY, INC. Stock $acfn

2013 Q1 Form 10-K Financial Statement

#000088098413000004 Filed on March 18, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ACFN
ACORN ENERGY, INC. Stock $acfn