$AMS
AMERICAN SHARED HOSPITAL SERVICES Stock $ams

$ams Overview Financials Valuation SEC Filings Company Website

2013 Form 10-K Financial Statement

#000114420414019552 Filed on March 31, 2014

Income Statement

Concept	2013	2012 Q4	2012
Revenue	$17.58M	$4.130M	$17.05M
YoY Change	3.14%	-8.22%	-1.1%
Cost Of Revenue	$10.64M	$2.600M	$10.12M
YoY Change	5.16%	-4.41%	-28.87%
Gross Profit	$6.944M	$1.530M	$6.930M
YoY Change	0.2%	-14.04%	-13.34%
Gross Profit Margin	39.49%	37.05%	40.65%
Selling, General & Admin	$4.025M	$950.0K	$4.045M
YoY Change	-0.49%	13.1%	0.1%
% of Gross Profit	57.96%	62.09%	58.37%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.410M	$1.540M	$6.096M
YoY Change	5.15%	-13.97%	-2.81%
% of Gross Profit	92.31%	100.65%	87.97%
Operating Expenses	$4.025M	$950.0K	$4.045M
YoY Change	-0.49%	11.76%	0.1%
Operating Profit	$1.120M	$580.0K	$730.0K
YoY Change	53.42%	-37.63%	-54.06%
Interest Expense	$1.799M	-$350.0K	$2.155M
YoY Change	-16.52%	-40.68%	-8.96%
% of Operating Profit	160.63%	-60.34%	295.21%
Other Income/Expense, Net
YoY Change
Pretax Income	-$29.00K	$220.0K	$920.0K
YoY Change	-103.15%	-37.14%	-45.79%
Income Tax	$84.00K	$60.00K	$107.0K
% Of Pretax Income		27.27%	11.63%
Net Earnings	-$312.0K	$10.00K	$38.00K
YoY Change	-921.05%	-95.83%	-92.49%
Net Earnings / Revenue	-1.77%	0.24%	0.22%
Basic Earnings Per Share	-$0.07		$0.01
Diluted Earnings Per Share	-$0.07	$2.160K	$0.01
COMMON SHARES
Basic Shares Outstanding	4.608M shares		4.609M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2013	2012 Q4	2012
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.910M	$1.560M	$10.56M
YoY Change	-81.91%	-86.53%	-8.81%
Cash & Equivalents	$1.910M	$1.564M	$1.560M
Short-Term Investments	$0.00		$9.000M
Other Short-Term Assets	$1.130M	$1.290M	$1.290M
YoY Change	-12.4%	1.57%	1.57%
Inventory
Prepaid Expenses
Receivables	$4.520M	$3.706M	$3.710M
Other Receivables	$150.0K	$400.0K	$400.0K
Total Short-Term Assets	$7.710M	$6.956M	$15.96M
YoY Change	-51.69%	-60.52%	-9.42%
LONG-TERM ASSETS
Property, Plant & Equipment	$51.38M	$53.68M	$53.68M
YoY Change	-4.28%	0.76%	0.77%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$11.70M	$0.00	$2.690M
YoY Change	334.94%	-100.0%	1.13%
Other Assets	$950.0K	$1.003M	$1.000M
YoY Change	-5.0%	0.3%	0.0%
Total Long-Term Assets	$64.03M	$66.37M	$57.36M
YoY Change	11.63%	16.6%	0.77%
TOTAL ASSETS
Total Short-Term Assets	$7.710M	$6.956M	$15.96M
Total Long-Term Assets	$64.03M	$66.37M	$57.36M
Total Assets	$71.74M	$73.32M	$73.32M
YoY Change	-2.15%	-1.63%	-1.64%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$570.0K	$263.0K	$260.0K
YoY Change	119.23%	-6.07%	-7.14%
Accrued Expenses	$2.440M	$1.720M	$1.720M
YoY Change	41.86%	10.97%	-16.1%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$8.770M	$3.932M	$7.670M
YoY Change	14.34%	-48.4%	0.66%
Total Short-Term Liabilities	$11.79M	$9.653M	$9.650M
YoY Change	22.18%	-2.89%	-2.92%
LONG-TERM LIABILITIES
Long-Term Debt	$32.53M	$35.56M	$35.56M
YoY Change	-8.52%	-1.19%	-1.19%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$32.53M	$35.56M	$35.56M
YoY Change	-8.52%	-1.19%	-1.19%
TOTAL LIABILITIES
Total Short-Term Liabilities	$11.79M	$9.653M	$9.650M
Total Long-Term Liabilities	$32.53M	$35.56M	$35.56M
Total Liabilities	$52.12M	$45.21M	$53.39M
YoY Change	-2.38%	-16.78%	-1.73%
SHAREHOLDERS EQUITY
Retained Earnings		$6.806M
YoY Change
Common Stock		$13.48M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$19.62M	$19.93M	$19.93M
YoY Change
Total Liabilities & Shareholders Equity	$71.74M	$73.32M	$73.32M
YoY Change	-2.15%	-1.63%	-1.64%

Cashflow Statement

Concept	2013	2012 Q4	2012
OPERATING ACTIVITIES
Net Income	-$312.0K	$10.00K	$38.00K
YoY Change	-921.05%	-95.83%	-92.49%
Depreciation, Depletion And Amortization	$6.410M	$1.540M	$6.096M
YoY Change	5.15%	-13.97%	-2.81%
Cash From Operating Activities	$8.076M	$2.470M	$6.869M
YoY Change	17.57%	91.47%	0.28%
INVESTING ACTIVITIES
Capital Expenditures	$1.710M	-$2.530M	$6.634M
YoY Change	-74.22%	-25.37%	18.19%
Acquisitions
YoY Change
Other Investing Activities	-$10.00K	-$140.0K	-$30.00K
YoY Change	-66.67%	-87.72%	-102.04%
Cash From Investing Activities	-$1.724M	-$2.680M	-$6.665M
YoY Change	-74.13%	-40.84%	17.92%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00		$28.00K
YoY Change	-100.0%
Debt Paid & Issued, Net	$3.523M		$6.818M
YoY Change	-48.33%
Cash From Financing Activities	-$6.019M	930.0K	-$1.222M
YoY Change	392.55%	-82.01%	4113.79%
NET CHANGE
Cash From Operating Activities	$8.076M	2.470M	$6.869M
Cash From Investing Activities	-$1.724M	-2.680M	-$6.665M
Cash From Financing Activities	-$6.019M	930.0K	-$1.222M
Net Change In Cash	$333.0K	720.0K	-$1.018M
YoY Change	-132.71%	-62.69%	-187.08%
FREE CASH FLOW
Cash From Operating Activities	$8.076M	$2.470M	$6.869M
Capital Expenditures	$1.710M	-$2.530M	$6.634M
Free Cash Flow	$6.366M	$5.000M	$235.0K
YoY Change	2608.94%	6.84%	-81.0%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2013Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	3967000	USD
CY2013Q4	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	10740000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	2238000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	4804000	USD
CY2013Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	12950000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	11785000	USD
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	572000	USD
CY2013Q4	us-gaap	Assets Assets	71742000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53677000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	954000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	3372000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	3932000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1003000	USD
CY2012Q4	us-gaap	Assets Assets	73323000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	263000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	168000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1548000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	3742000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	9653000	USD
CY2012Q4	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	13837000	USD
CY2012Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	13173000	USD
CY2012Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	8550000	USD
CY2013Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	8840000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	3280000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	8578000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	8578000	USD
CY2011	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	17237000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	7706000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	51381000	USD
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	204000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	4902000	USD
CY2013	us-gaap	Line Of Credit Facility Maximum Amount Outstanding During Period LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod	9000000	USD
CY2013	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2015-08-01
CY2013	us-gaap	Debt Instrument Interest Rate Terms DebtInstrumentInterestRateTerms	The bank's prime rate minus 0.5 percentage point, or alternatively at the Company's discretion, the LIBOR rate plus 1.0 percentage point.
CY2012Q4	us-gaap	Cost Method Investments CostMethodInvestments	2687000	USD
CY2013Q4	us-gaap	Cost Method Investments CostMethodInvestments	2701000	USD
CY2012Q4	ams	Cash And Cash Equivalents Excluding Certificate Of Deposit CashAndCashEquivalentsExcludingCertificateOfDeposit	1564000	USD
CY2013Q4	ams	Cash And Cash Equivalents Excluding Certificate Of Deposit CashAndCashEquivalentsExcludingCertificateOfDeposit	1909000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	50000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	50000	USD
CY2012Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	9000000	USD
CY2013Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	9000000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3706000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	4522000	USD
CY2012Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	401000	USD
CY2013Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	143000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	925000	USD
CY2013Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	740000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	310000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	342000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	6956000	USD
CY2013	us-gaap	Debt Instrument Interest Rate During Period DebtInstrumentInterestRateDuringPeriod	0.0145	pure
CY2012Q4	ams	Restricted Cash And Cash Equivalents Carrying Value RestrictedCashAndCashEquivalentsCarryingValue	10614000	USD
CY2013Q4	ams	Restricted Cash And Cash Equivalents Carrying Value RestrictedCashAndCashEquivalentsCarryingValue	10959000	USD
CY2012Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	4107000	USD
CY2013Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	4665000	USD
CY2012Q4	ams	Assets Carrying Value AssetsCarryingValue	26408000	USD
CY2013Q4	ams	Assets Carrying Value AssetsCarryingValue	27325000	USD
CY2012Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	1979000	USD
CY2013Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	3014000	USD
CY2012Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	34684000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-29000	USD
CY2013Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	32461000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	45213000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	44315000	USD
CY2012Q4	ams	Restricted Cash And Cash Equivalents Fair Value RestrictedCashAndCashEquivalentsFairValue	1614000	USD
CY2013Q4	ams	Restricted Cash And Cash Equivalents Fair Value RestrictedCashAndCashEquivalentsFairValue	1959000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	208000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	4045000	USD
CY2013	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	4025000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	5965000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	107000	USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6309000	USD
CY2011	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	2467000	USD
CY2012	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	2624000	USD
CY2013	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	2540000	USD
CY2011	us-gaap	Cost Of Revenue CostOfRevenue	14224000	USD
CY2012	us-gaap	Cost Of Revenue CostOfRevenue	10118000	USD
CY2013	us-gaap	Cost Of Revenue CostOfRevenue	10640000	USD
CY2011	us-gaap	Gross Profit GrossProfit	7997000	USD
CY2012	us-gaap	Gross Profit GrossProfit	6930000	USD
CY2013	us-gaap	Gross Profit GrossProfit	6944000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	4041000	USD
CY2011	us-gaap	Interest Expense InterestExpense	2367000	USD
CY2012	us-gaap	Interest Expense InterestExpense	2155000	USD
CY2013	us-gaap	Interest Expense InterestExpense	1799000	USD
CY2012Q4	us-gaap	Receivables Fair Value Disclosure ReceivablesFairValueDisclosure	4107000	USD
CY2013Q4	us-gaap	Receivables Fair Value Disclosure ReceivablesFairValueDisclosure	4665000	USD
CY2012Q4	us-gaap	Cost Method Investments Fair Value Disclosure CostMethodInvestmentsFairValueDisclosure	1300000	USD
CY2013Q4	us-gaap	Cost Method Investments Fair Value Disclosure CostMethodInvestmentsFairValueDisclosure	300000	USD
CY2012Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	16021000	USD
CY2013Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	15924000	USD
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Fair Value Disclosure AccountsPayableAndAccruedLiabilitiesFairValueDisclosure	1979000	USD
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Fair Value Disclosure AccountsPayableAndAccruedLiabilitiesFairValueDisclosure	3014000	USD
CY2012Q4	us-gaap	Lines Of Credit Fair Value Disclosure LinesOfCreditFairValueDisclosure	8550000	USD
CY2013Q4	us-gaap	Lines Of Credit Fair Value Disclosure LinesOfCreditFairValueDisclosure	8840000	USD
CY2012Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	34577000	USD
CY2013Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Obligations FairValueLiabilitiesMeasuredOnRecurringBasisObligations	32418000	USD
CY2012Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	45106000	USD
CY2013Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	44272000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	USD
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4606000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4609000	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4606000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4609000	shares
CY2012	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	17048000	USD
CY2013	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	17584000	USD
CY2011	us-gaap	Direct Operating Maintenance Supplies Costs DirectOperatingMaintenanceSuppliesCosts	1484000	USD
CY2012	us-gaap	Direct Operating Maintenance Supplies Costs DirectOperatingMaintenanceSuppliesCosts	1529000	USD
CY2013	us-gaap	Direct Operating Maintenance Supplies Costs DirectOperatingMaintenanceSuppliesCosts	1791000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	6127000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	1589000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	730000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	1120000	USD
CY2011	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	27000	USD
CY2012	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	-132000	USD
CY2013	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	1174000	USD
CY2011	us-gaap	Interest And Other Income InterestAndOtherIncome	135000	USD
CY2012	us-gaap	Interest And Other Income InterestAndOtherIncome	58000	USD
CY2013	us-gaap	Interest And Other Income InterestAndOtherIncome	25000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1697000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	920000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	84000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	1489000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	813000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	-113000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	983000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	775000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	199000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	506000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	38000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	-312000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.01
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.01
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	0	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-637000	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-142000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	506000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-599000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-454000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-280000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-57000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	506000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-319000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-397000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	23044000	USD
CY2012	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	28000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	125000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	74000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	88000	USD
CY2011	ams	Investment In Subsidiary By Non Controlling Interests InvestmentInSubsidiaryByNonControllingInterests	1509000	USD
CY2012	ams	Investment In Subsidiary By Non Controlling Interests InvestmentInSubsidiaryByNonControllingInterests	217000	USD
CY2013	ams	Investment In Subsidiary By Non Controlling Interests InvestmentInSubsidiaryByNonControllingInterests	184000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	996000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	780000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	792000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	25171000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6272000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6096000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6410000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	76000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	25000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	59000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	125000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	74000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	88000	USD
CY2011	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	72000	USD
CY2012	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-3000	USD
CY2013	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-20000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	961000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-655000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	643000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1063000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	316000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-58000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	957000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-349000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1023000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6850000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6869000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	8076000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5613000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6634000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1710000	USD
CY2011	us-gaap	Payments For Repurchase Of Convertible Preferred Stock PaymentsForRepurchaseOfConvertiblePreferredStock	39000	USD
CY2012	us-gaap	Payments For Repurchase Of Convertible Preferred Stock PaymentsForRepurchaseOfConvertiblePreferredStock	31000	USD
CY2013	us-gaap	Payments For Repurchase Of Convertible Preferred Stock PaymentsForRepurchaseOfConvertiblePreferredStock	14000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5652000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6665000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1724000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6818000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3523000	USD
CY2011	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	2983000	USD
CY2012	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3732000	USD
CY2013	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3476000	USD
CY2011	ams	Proceeds From Long Term Financing On Purchase Of Property And Equipment ProceedsFromLongTermFinancingOnPurchaseOfPropertyAndEquipment	6980000	USD
CY2012	ams	Proceeds From Long Term Financing On Purchase Of Property And Equipment ProceedsFromLongTermFinancingOnPurchaseOfPropertyAndEquipment	9219000	USD
CY2013	ams	Proceeds From Long Term Financing On Purchase Of Property And Equipment ProceedsFromLongTermFinancingOnPurchaseOfPropertyAndEquipment	1298000	USD
CY2011	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	350000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1300000	USD
CY2013	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	369000	USD
CY2011	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1000000	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	600000	USD
CY2013	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	79000	USD
CY2011	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	996000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	780000	USD
CY2013	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	792000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-29000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1222000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-6019000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-27000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2000	USD
CY2013	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	12000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	1169000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1018000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	333000	USD
CY2010Q4	ams	Cash And Cash Equivalents Excluding Certificate Of Deposit CashAndCashEquivalentsExcludingCertificateOfDeposit	1438000	USD
CY2011Q4	ams	Cash And Cash Equivalents Excluding Certificate Of Deposit CashAndCashEquivalentsExcludingCertificateOfDeposit	2580000	USD
CY2011	us-gaap	Interest Paid InterestPaid	2503000	USD
CY2012	us-gaap	Interest Paid InterestPaid	2352000	USD
CY2013	us-gaap	Interest Paid InterestPaid	2116000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	90000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	158000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	44000	USD
CY2011	ams	Acquisition Of Equipment With Capital Lease Financing AcquisitionOfEquipmentWithCapitalLeaseFinancing	6400000	USD
CY2012	ams	Acquisition Of Equipment With Capital Lease Financing AcquisitionOfEquipmentWithCapitalLeaseFinancing	264000	USD
CY2013	ams	Acquisition Of Equipment With Capital Lease Financing AcquisitionOfEquipmentWithCapitalLeaseFinancing	3478000	USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	48000	USD
CY2013	dei	Document Type DocumentType	10-K
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4607000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4609000	shares
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	196000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	390000	USD
CY2012Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	80884000	USD
CY2013Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	79828000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif "> <div style="CLEAR:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 0in; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif; font-size-adjust: none; font-stretch: normal" align="justify"><strong>Use of estimates in the preparation of financial statements</strong> In preparing financial statements in conformity with accounting principles generally accepted in the United States of America, management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Significant accounting estimates reflected in the Company’s consolidated financial statements include the allowance for doubtful accounts, estimated useful lives of fixed assets and salvage values, and the fair value of financial instruments.  Actual results could differ from those estimates.</div> </div><table border="0" style="width:100%; table-layout:fixed;" cellspacing="0" cellpadding="0"><tr><td></td></tr></table>
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4608000	shares
CY2011	ams	Effect Of Dilutive Securities Employee Stock Options Or Restricted Stock Units EffectOfDilutiveSecuritiesEmployeeStockOptionsOrRestrictedStockUnits	15000	shares
CY2012	ams	Effect Of Dilutive Securities Employee Stock Options Or Restricted Stock Units EffectOfDilutiveSecuritiesEmployeeStockOptionsOrRestrictedStockUnits	21000	shares
CY2013	ams	Effect Of Dilutive Securities Employee Stock Options Or Restricted Stock Units EffectOfDilutiveSecuritiesEmployeeStockOptionsOrRestrictedStockUnits	3000	shares
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4622000	shares
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4630000	shares
CY2013	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4611000	shares
CY2012	ams	Number Of Customers NumberOfCustomers	19	Customers
CY2013	ams	Number Of Customers NumberOfCustomers	19	Customers
CY2012Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	38515000	USD
CY2013Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	44630000	USD
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	570000	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	588000	shares
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	576000	shares
CY2011	us-gaap	Foreign Currency Transaction Gain Before Tax ForeignCurrencyTransactionGainBeforeTax	27000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Before Tax ForeignCurrencyTransactionGainBeforeTax	132000	USD
CY2013	us-gaap	Foreign Currency Transaction Gain Before Tax ForeignCurrencyTransactionGainBeforeTax	1174000	USD
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2011	ams	Revenue From Number Of Customer RevenueFromNumberOfCustomer	21	Customers
CY2012	ams	Revenue From Number Of Customer RevenueFromNumberOfCustomer	19	Customers
CY2013	ams	Revenue From Number Of Customer RevenueFromNumberOfCustomer	19	Customers
CY2013	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	50309000	USD
CY2013Q4	ams	Long Term Purchase Commitment Deposits For Future Purchase LongTermPurchaseCommitmentDepositsForFuturePurchase	5884000	USD
CY2013	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.04	pure
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	42000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	41000	USD
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Trading Symbol TradingSymbol	AMS
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	4608870	shares
CY2013	dei	Entity Registrant Name EntityRegistrantName	AMERICAN SHARED HOSPITAL SERVICES
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000744825
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Smaller Reporting Company
CY2013Q2	dei	Entity Public Float EntityPublicFloat	7342000	USD
CY2011	us-gaap	Sales Revenue Goods Gross SalesRevenueGoodsGross	4984000	USD
CY2012	us-gaap	Sales Revenue Goods Gross SalesRevenueGoodsGross	0	USD
CY2013	us-gaap	Sales Revenue Goods Gross SalesRevenueGoodsGross	0	USD
CY2011	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	22221000	USD
CY2012	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	17048000	USD
CY2013	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	17584000	USD
CY2011	us-gaap	Cost Of Goods Sold CostOfGoodsSold	4146000	USD
CY2012	us-gaap	Cost Of Goods Sold CostOfGoodsSold	0	USD
CY2013	us-gaap	Cost Of Goods Sold CostOfGoodsSold	0	USD
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	10000000	shares
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-27000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	132000	USD
CY2013	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-1174000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	28000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1509000	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	217000	USD
CY2013	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	184000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Remainder Of Fiscal Year CapitalLeasesFutureMinimumPaymentsRemainderOfFiscalYear	-3967000	USD
CY2013Q4	ams	Capita Leases Future Minimum Payments Net Minimum Payments Excluding Current Portion CapitaLeasesFutureMinimumPaymentsNetMinimumPaymentsExcludingCurrentPortion	12950000	USD
CY2013	us-gaap	Long Term Debt Description LongTermDebtDescription	payable in 36 to 84 monthly installments, mature between December 2014 and December 2019,
CY2013Q4	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.025	pure
CY2013	ams	Capital Lease Obligation Description CapitalLeaseObligationDescription	payable in 60 to 84 monthly installments, and mature between March 2014 and June 2020.
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	17769000	USD
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	15544000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	304237	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	305559	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	125640	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	0	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	735435	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	423000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	438000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	549000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	94901000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	95180000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	41224000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	43799000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.51
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.60
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.28
CY1999Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	1000000	shares
CY2001Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	1000000	shares
CY2012Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	9000	shares
CY2013Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	72000	shares
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	3533000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3641000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2006000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	4804000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1080000	USD
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.34	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.34	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.34	pure
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	9609000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	1752000	USD
CY2013	ams	Net Operating Loss Carry Forwards And Other Deferred Tax Assets Percentage NetOperatingLossCarryForwardsAndOtherDeferredTaxAssetsPercentage	limited in the event of a 50% or more ownership change within any three-year period
CY2013	ams	Federal Net Operating Loss Expiration Dates FederalNetOperatingLossExpirationDates	20 years
CY2013	ams	Operating Loss Carry Forward Expiration Dates OperatingLossCarryForwardExpirationDates	expire between 2019 and 2032
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	5140000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	4809000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	4090000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	3335000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	1709000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	814000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	19897000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	2980000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	16917000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	480000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	35000	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	21500	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	14000	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	16500	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	1.28
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	1.29
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	1.46
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	1.25
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	26000	shares
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2011	ams	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Foreiture Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForeitureRateMinimum	0.020	pure
CY2012	ams	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Foreiture Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForeitureRateMinimum	0	pure
CY2011	ams	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Foreiture Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForeitureRateMaximum	0.037	pure
CY2012	ams	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Foreiture Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForeitureRateMaximum	0.040	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.4	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.4	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.45	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.45	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0	pure
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.030	pure
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.026	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.033	pure
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.030	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.017	pure
CY2013	us-gaap	Stockholders Equity Reverse Stock Split StockholdersEquityReverseStockSplit	In mid-2011, Mevion performed a reverse stock split of all shares in which 100 shares were converted to one share.
CY2013Q4	ams	Long Term Purchase Commitment Deposits For Assets LongTermPurchaseCommitmentDepositsForAssets	3000000	USD
CY2012Q1	ams	Additional Cost Method Investments AdditionalCostMethodInvestments	70000	USD
CY2013	ams	Investment Percentage In Common Stock InvestmentPercentageInCommonStock	0.0077	pure
CY2013	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	2400000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7218000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7201000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	7218000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	7201000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	3767000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	3607000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Returns And Allowances DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReturnsAndAllowances	233000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Returns And Allowances DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReturnsAndAllowances	240000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	334000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	318000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	77000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	101000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	4411000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	4266000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-2970000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-3030000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	163000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	95000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	4248000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	4171000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	18000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	128000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	65000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	23000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2013	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	132000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	83000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	23000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	305000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	95000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	184000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-229000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-41000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	12000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-30000	USD
CY2013	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-135000	USD
CY2011	ams	Deferred Income Tax Expense Benefit Total DeferredIncomeTaxExpenseBenefitTotal	76000	USD
CY2012	ams	Deferred Income Tax Expense Benefit Total DeferredIncomeTaxExpenseBenefitTotal	24000	USD
CY2013	ams	Deferred Income Tax Expense Benefit Total DeferredIncomeTaxExpenseBenefitTotal	61000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	243000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	49000	USD
CY2013	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-92000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-144000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	38000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	119000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	41000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	24000	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	28000	USD
CY2011	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	68000	USD
CY2012	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-4000	USD
CY2013	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	29000	USD
CY2013	ams	Operating Leases Cumulative Loss OperatingLeasesCumulativeLoss	115000	USD
CY2012Q4	ams	Certificates Of Deposit At Fair Value CertificatesOfDepositAtFairValue	9000000	USD
CY2013Q4	ams	Certificates Of Deposit At Fair Value CertificatesOfDepositAtFairValue	9000000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	596000	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	21500	shares
CY2013	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	16500	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	575900	shares
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	2.23
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2013	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	4.50
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CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	601000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.58
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.50
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.55
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y5M1D
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y2M5D
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
CY2013Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	0	USD
CY2013	ams	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Foreiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForeitureRate	0.0	pure
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.49	pure

Files In Submission

Name	View Source	Status
0001144204-14-019552-index-headers.html	Edgar Link	pending
0001144204-14-019552-index.html	Edgar Link	pending
0001144204-14-019552.txt	Edgar Link	pending
0001144204-14-019552-xbrl.zip	Edgar Link	pending
ams-20131231.xml	Edgar Link	completed
ams-20131231.xsd	Edgar Link	pending
ams-20131231_cal.xml	Edgar Link	unprocessable
ams-20131231_def.xml	Edgar Link	unprocessable
ams-20131231_lab.xml	Edgar Link	unprocessable
ams-20131231_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
image_004.gif	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
tex10-22bpg17.jpg	Edgar Link	pending
v371940_10k.htm	Edgar Link	pending
v371940_ex10-22b.htm	Edgar Link	pending
v371940_ex21.htm	Edgar Link	pending
v371940_ex23-1.htm	Edgar Link	pending
v371940_ex31a.htm	Edgar Link	pending
v371940_ex31b.htm	Edgar Link	pending
v371940_ex32.htm	Edgar Link	pending

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$AMS
AMERICAN SHARED HOSPITAL SERVICES Stock $ams

2013 Form 10-K Financial Statement

#000114420414019552 Filed on March 31, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMS AMERICAN SHARED HOSPITAL SERVICES Stock $ams

2013 Form 10-K Financial Statement

#000114420414019552 Filed on March 31, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMS
AMERICAN SHARED HOSPITAL SERVICES Stock $ams