$FCEL
FUELCELL ENERGY INC Stock $fcel

$fcel Overview Financials Valuation SEC Filings Company Website

2017 Form 10-K Financial Statement

#000156459018000401 Filed on January 11, 2018

Income Statement

Concept	2017	2016 Q4	2016 Q3
Revenue	$95.67M	$24.47M	$21.72M
YoY Change	-11.63%	-52.43%	-47.49%
Cost Of Revenue	$92.93M	$24.94M	$21.28M
YoY Change	-14.43%	-48.38%	-43.64%
Gross Profit	$2.734M	-$468.0K	$434.0K
YoY Change	-865.83%	-114.89%	-87.93%
Gross Profit Margin	2.86%	-1.91%	2.0%
Selling, General & Admin	$25.92M	$6.210M	$5.458M
YoY Change	3.05%	-0.16%	-10.54%
% of Gross Profit	947.92%		1257.6%
Research & Development	$20.40M	$5.130M	$5.299M
YoY Change	-2.15%	7.1%	15.27%
% of Gross Profit	746.09%		1220.97%
Depreciation & Amortization	$4.400M	$1.370M	$1.240M
YoY Change	2.33%	24.55%	16.98%
% of Gross Profit	160.94%		285.71%
Operating Expenses	$47.67M	$11.34M	$10.76M
YoY Change	3.64%	3.0%	0.55%
Operating Profit	-$44.94M	-$11.81M	-$10.32M
YoY Change	-3.06%	50.08%	45.33%
Interest Expense	$9.171M	-$1.760M	$1.373M
YoY Change	84.97%	128.57%	51.71%
% of Operating Profit
Other Income/Expense, Net	$247.0K	$730.0K	$749.0K
YoY Change	-60.29%	-505.56%	-48.84%
Pretax Income	-$53.86M	-$12.83M	-$10.95M
YoY Change	15.31%	45.63%	67.28%
Income Tax	$44.00K	$120.0K	$120.0K
% Of Pretax Income
Net Earnings	-$53.90M	-$12.95M	-$11.01M
YoY Change	5.78%	45.4%	68.37%
Net Earnings / Revenue	-56.34%	-52.91%	-50.7%
Basic Earnings Per Share	-$13.73		-$0.38
Diluted Earnings Per Share	-$13.73	-$4.676M	-$0.38
COMMON SHARES
Basic Shares Outstanding	4.160M		31.02M
Diluted Shares Outstanding	4.160M		31.02M

Balance Sheet

Concept	2017	2016 Q4	2016 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$49.30M	$84.20M	$94.20M
YoY Change	-41.45%	42.95%	43.82%
Cash & Equivalents	$49.30M	$84.19M	$94.15M
Short-Term Investments
Other Short-Term Assets	$11.20M	$10.18M	$7.252M
YoY Change	-39.78%	46.4%	-28.43%
Inventory	$74.50M	$73.81M	$78.20M
Prepaid Expenses
Receivables	$68.50M	$24.59M	$29.29M
Other Receivables	$0.00	$1.000M	$900.0K
Total Short-Term Assets	$203.5M	$202.2M	$234.0M
YoY Change	0.64%	-0.83%	3.92%
LONG-TERM ASSETS
Property, Plant & Equipment	$43.60M	$36.64M	$30.49M
YoY Change	19.13%	26.34%	12.84%
Goodwill		$4.075M	$4.075M
YoY Change		0.0%	0.0%
Intangibles		$9.592M	$9.592M
YoY Change		0.0%	0.0%
Long-Term Investments
YoY Change
Other Assets	$123.0M	$16.42M	$7.917M
YoY Change	39.46%	422.44%	129.01%
Total Long-Term Assets	$180.3M	$138.5M	$95.66M
YoY Change	30.18%	88.9%	47.77%
TOTAL ASSETS
Total Short-Term Assets	$203.5M	$202.2M	$234.0M
Total Long-Term Assets	$180.3M	$138.5M	$95.66M
Total Assets	$383.8M	$340.7M	$329.6M
YoY Change	12.65%	22.9%	13.71%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$42.60M	$18.48M	$16.00M
YoY Change	130.27%	17.34%	-16.69%
Accrued Expenses	$11.40M	$20.90M	$19.72M
YoY Change	-35.23%	9.0%	14.13%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$29.10M	$5.010M	$14.00M
YoY Change	401.72%	-31.91%	102.59%
Total Short-Term Liabilities	$98.10M	$52.00M	$68.54M
YoY Change	88.65%	-30.57%	-18.1%
LONG-TERM LIABILITIES
Long-Term Debt	$78.00M	$76.76M	$38.53M
YoY Change	-16.58%	758.13%	53.5%
Other Long-Term Liabilities	$18.90M	$80.86M	$42.60M
YoY Change	-10.0%	522.06%	223.98%
Total Long-Term Liabilities	$96.90M	$157.6M	$81.13M
YoY Change	-15.37%	618.29%	516.97%
TOTAL LIABILITIES
Total Short-Term Liabilities	$98.10M	$52.00M	$68.54M
Total Long-Term Liabilities	$96.90M	$157.6M	$81.13M
Total Liabilities	$195.0M	$166.5M	$145.0M
YoY Change	17.12%	35.77%	9.89%
SHAREHOLDERS EQUITY
Retained Earnings		-$889.6M	-$876.8M
YoY Change		6.08%	5.66%
Common Stock		$1.005B	$1.003B
YoY Change		7.5%	7.95%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$179.0K	$179.0K
YoY Change		129.49%	219.64%
Treasury Stock Shares		$21.53K	21.53K shares
Shareholders Equity	$188.8M	$114.4M	$125.5M
YoY Change
Total Liabilities & Shareholders Equity	$383.8M	$340.7M	$329.6M
YoY Change	12.65%	22.9%	13.71%

Cashflow Statement

Concept	2017	2016 Q4	2016 Q3
OPERATING ACTIVITIES
Net Income	-$53.90M	-$12.95M	-$11.01M
YoY Change	5.78%	45.4%	68.37%
Depreciation, Depletion And Amortization	$4.400M	$1.370M	$1.240M
YoY Change	2.33%	24.55%	16.98%
Cash From Operating Activities	-$71.85M	-$90.00K	-$25.01M
YoY Change	54.19%	-98.98%	7.94%
INVESTING ACTIVITIES
Capital Expenditures	-$32.08M	-$30.98M	-$3.470M
YoY Change	-22.61%	902.59%	567.31%
Acquisitions
YoY Change
Other Investing Activities	$630.0K		$0.00
YoY Change
Cash From Investing Activities	-$31.44M	-$30.98M	-$3.470M
YoY Change	-24.14%	902.59%	567.31%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$8.571M
YoY Change	-71.85%
Cash From Financing Activities	72.29M	20.58M	40.86M
YoY Change	-40.09%	208.08%	548.57%
NET CHANGE
Cash From Operating Activities	-71.85M	-90.00K	-25.01M
Cash From Investing Activities	-31.44M	-30.98M	-3.470M
Cash From Financing Activities	72.29M	20.58M	40.86M
Net Change In Cash	-30.87M	-10.49M	12.38M
YoY Change	-194.76%	101.73%	-171.19%
FREE CASH FLOW
Cash From Operating Activities	-$71.85M	-$90.00K	-$25.01M
Capital Expenditures	-$32.08M	-$30.98M	-$3.470M
Free Cash Flow	-$39.77M	$30.89M	-$21.54M
YoY Change	672.89%	-641.93%	-4.9%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	75678919
CY2017	dei	Trading Symbol TradingSymbol	FCEL
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CY2017	dei	Entity Registrant Name EntityRegistrantName	FUELCELL ENERGY INC
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017Q2	dei	Entity Public Float EntityPublicFloat	54054838000
CY2017Q2	us-gaap	Share Price SharePrice	1.15
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	49294000
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	84187000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	4628000
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	9437000
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	68521000
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	24593000
CY2016Q4	us-gaap	Inventory Net InventoryNet	73806000
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-10-31
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Document Type DocumentType	10-K
CY2017Q4	us-gaap	Inventory Net InventoryNet	74496000
CY2017	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--10-31
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CY2017Q4	us-gaap	Assets Current AssetsCurrent	203510000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	33526000
CY2017Q4	fcel	Long Term Project Assets LongTermProjectAssets	73001000
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	43565000
CY2017Q4	us-gaap	Goodwill Goodwill	4075000
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2015	us-gaap	Interest Expense InterestExpense	2960000
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	274000
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2442000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44000
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	-46353000
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	-28892000
CY2017	us-gaap	Interest Expense InterestExpense	9171000
CY2016	us-gaap	Interest Expense InterestExpense	4958000
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3157000
CY2015	us-gaap	Operating Expenses OperatingExpenses	41668000
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	16517000
CY2017Q4	us-gaap	Assets Assets	383786000
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CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	42616000
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	98078000
CY2017Q4	fcel	Preferred Stock Obligation Of Subsidiary Non Current PreferredStockObligationOfSubsidiaryNonCurrent	14221000
CY2016	us-gaap	Gross Profit GrossProfit	-357000
CY2016	us-gaap	Profit Loss ProfitLoss	-51208000
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CY2016Q4	us-gaap	Assets Current AssetsCurrent	202204000
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CY2016Q4	us-gaap	Goodwill Goodwill	4075000
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CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9592000
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CY2017Q4	us-gaap	Liabilities Liabilities	194973000
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CY2017Q4	us-gaap	Common Stock Value CommonStockValue	7000
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	4000
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CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	280000
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CY2017Q4	us-gaap	Treasury Stock Deferred Employee Stock Ownership Plan TreasuryStockDeferredEmployeeStockOwnershipPlan	280000
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CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	79000
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	193000
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
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CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	88861
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CY2017	us-gaap	Cost Of Services CostOfServices	25285000
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CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	26921000
CY2015	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	539000
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	94754000
CY2016	fcel	Sale Of Common Stock Prepaid Warrants And Warrants Public Offering SaleOfCommonStockPrepaidWarrantsAndWarrantsPublicOffering	34736000
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	36056000
CY2016	us-gaap	Share Based Goods And Nonemployee Services Transaction Stockholders Equity ShareBasedGoodsAndNonemployeeServicesTransactionStockholdersEquity	157000
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3425000
CY2016	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	286000
CY2016	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-3000
CY2017	fcel	Sale Of Common Stock Warrants And Public Offering SaleOfCommonStockWarrantsAndPublicOffering	13884000
CY2017	fcel	Exercise Of Prepaid Warrants And Warrants ExerciseOfPrepaidWarrantsAndWarrants	12722000
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	12431000
CY2017	us-gaap	Share Based Goods And Nonemployee Services Transaction Stockholders Equity ShareBasedGoodsAndNonemployeeServicesTransactionStockholdersEquity	129000
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4585000
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	84000
CY2017	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	167000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	4585000
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	3425000
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	3157000
CY2017	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	-91000
CY2016	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	14000
CY2015	us-gaap	Embedded Derivative Gain Loss On Embedded Derivative Net EmbeddedDerivativeGainLossOnEmbeddedDerivativeNet	23000
CY2017	fcel	Depreciation Include Property Plant And Equipment And Project Assets DepreciationIncludePropertyPlantAndEquipmentAndProjectAssets	8518000
CY2016	fcel	Depreciation Include Property Plant And Equipment And Project Assets DepreciationIncludePropertyPlantAndEquipmentAndProjectAssets	4949000
CY2015	fcel	Depreciation Include Property Plant And Equipment And Project Assets DepreciationIncludePropertyPlantAndEquipmentAndProjectAssets	4099000
CY2017	fcel	Amortization Of Non Cash Interest Expense AmortizationOfNonCashInterestExpense	6256000
CY2016	fcel	Amortization Of Non Cash Interest Expense AmortizationOfNonCashInterestExpense	3207000
CY2015	fcel	Amortization Of Non Cash Interest Expense AmortizationOfNonCashInterestExpense	1830000
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-581000
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	324000
CY2015	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	2075000
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-165000
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-451000
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-412000
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	51276000
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-30235000
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-3173000
CY2017Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	632000
CY2017Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1344000
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	81770000
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	5010000
CY2016Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	76760000
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	7972000
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	8052000
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	10100000
CY2017	fcel	Increase Decrease In Project Assets IncreaseDecreaseInProjectAssets	0
CY2016	fcel	Increase Decrease In Project Assets IncreaseDecreaseInProjectAssets	0
CY2015	fcel	Increase Decrease In Project Assets IncreaseDecreaseInProjectAssets	11398000
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	714000
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	837000
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1022000
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	25020000
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3019000
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-7224000
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-2290000
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1240000
CY2015	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	6435000
CY2017	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-906000
CY2016	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-26648000
CY2015	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-3898000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-71845000
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-46595000
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-44274000
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	12351000
CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	7726000
CY2015	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	6930000
CY2017	fcel	Investment In Long Term Project Assets InvestmentInLongTermProjectAssets	19726000
CY2016	fcel	Investment In Long Term Project Assets InvestmentInLongTermProjectAssets	33726000
CY2015	fcel	Investment In Long Term Project Assets InvestmentInLongTermProjectAssets	0
CY2017	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	633000
CY2016	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0
CY2015	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-31444000
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-41452000
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-6930000
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	8571000
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	30452000
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1535000
CY2017	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	17877000
CY2016	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	85935000
CY2015	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	6763000
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	206000
CY2016	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1758000
CY2015	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	3000
CY2015	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0
CY2017	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	27866000
CY2016	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0
CY2015	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0
CY2017	fcel	Proceeds From Common Stock Issuance And Warrant Exercises Net Of Registration Fees ProceedsFromCommonStockIssuanceAndWarrantExercisesNetOfRegistrationFees	39396000
CY2016	fcel	Proceeds From Common Stock Issuance And Warrant Exercises Net Of Registration Fees ProceedsFromCommonStockIssuanceAndWarrantExercisesNetOfRegistrationFees	70929000
CY2015	fcel	Proceeds From Common Stock Issuance And Warrant Exercises Net Of Registration Fees ProceedsFromCommonStockIssuanceAndWarrantExercisesNetOfRegistrationFees	27060000
CY2017	fcel	Payment Of Preferred Dividends And Return Of Capital PaymentOfPreferredDividendsAndReturnOfCapital	4156000
CY2016	fcel	Payment Of Preferred Dividends And Return Of Capital PaymentOfPreferredDividendsAndReturnOfCapital	4170000
CY2015	fcel	Payment Of Preferred Dividends And Return Of Capital PaymentOfPreferredDividendsAndReturnOfCapital	4202000
CY2017	fcel	Proceedsfrom Issuanceof Common Stock Issuedfor Stock Plansand Related Expenses ProceedsfromIssuanceofCommonStockIssuedforStockPlansandRelatedExpenses	86000
CY2016	fcel	Proceedsfrom Issuanceof Common Stock Issuedfor Stock Plansand Related Expenses ProceedsfromIssuanceofCommonStockIssuedforStockPlansandRelatedExpenses	177000
CY2015	fcel	Proceedsfrom Issuanceof Common Stock Issuedfor Stock Plansand Related Expenses ProceedsfromIssuanceofCommonStockIssuedforStockPlansandRelatedExpenses	133000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	72292000
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	120658000
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	28219000
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	129000
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-35000
CY2015	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-108000
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-30868000
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	32576000
CY2015	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-23093000
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	118316000
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	85740000
CY2014Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108833000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	87448000
CY2017	us-gaap	Revenue Recognition Services Royalty Fees RevenueRecognitionServicesRoyaltyFees	<div> <p style="text-align:justify;margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-style:italic;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;">License Agreements and Royalty Income</p> <p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Cell Technology Transfer and License Agreement dated October 31, 2012 by and between the Company and POSCO Energy, Co., (the "CTTA") provides POSCO Energy with the technology to manufacture SureSource power plants in South Korea and the exclusive market access to sell power plants throughout Asia.  In connection with the CTTA, fees totaling $18.0 million were paid between fiscal year 2012 and 2015 and are being amortized over the term of the CTTA.  </p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company also receives royalties from POSCO Energy under the 2007 Technology Transfer, Distribution and Licensing Agreement ("TTA") and the 2009 Stack Technology Transfer and License Agreement ("STTA") at the rate of 3.0% of POSCO Energy net sales.  Additionally, under the STTA certain license fee income aggregating $7.0 million is being recognized ratably over fifteen years beginning November 1, 2012.  Under the terms of the TTA, POSCO Energy manufactures BOP in South Korea using its design, procurement and manufacturing expertise. The STTA allows POSCO Energy to produce fuel cell modules which will be combined with BOP manufactured in South Korea to complete electricity-producing fuel cell power plants for sale in South Korea. </p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company has a Master Service Agreement with POSCO Energy, whereby POSCO Energy has more responsibility for servicing installations in Asia that utilize power plants manufactured by POSCO Energy.  The Company performs engineering and support services for each unit in the installed fleet and receives quarterly fees as well as a 3.0% royalty on each fuel cell module replacement under service agreements that were built by POSCO Energy and installed at any plant in Asia. </p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">In April 2014, the Company entered into an Integrated Global Supply Chain Plan Agreement ("IGSCP") with POSCO Energy.  FuelCell Energy provides procurement services for POSCO Energy and receives fixed compensation for services rendered.</p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company recorded revenue of $2.7 million, $6.2 million and $3.9 million for the years ended October 31, 2017, 2016 and 2015, respectively, relating to the above agreements.</p></div>
CY2017	us-gaap	Revenue Recognition Deferred Revenue RevenueRecognitionDeferredRevenue	<div> <p style="text-align:justify;margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-style:italic;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;">Deferred Revenue and Customer Deposits</p> <p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">We receive payments from customers upon the acceptance of a purchase order and when contractual milestones are reached. These payments may be deferred based on the nature of the payment and status of the specific project. Deferred revenue is recognized as revenue in accordance with our revenue recognition policies summarized above.</p></div>
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div> <p style="text-align:justify;margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-style:italic;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;">Use of Estimates</p> <p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Estimates are used in accounting for, among other things, revenue recognition, excess and obsolete inventories, product warranty costs, accruals for service agreements, allowance for uncollectible receivables, depreciation and amortization, impairment of goodwill, indefinite-lived intangible assets and long-lived assets, income taxes, and contingencies. Estimates and assumptions are reviewed periodically, and the effects of revisions are reflected in the consolidated financial statements in the period they are determined to be necessary.  Due to the inherent uncertainty involved in making estimates, actual results in future periods may differ from those estimates.</p></div>
CY2017	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div> <p style="text-align:justify;margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-style:italic;font-family:Times New Roman;font-size:10pt;font-weight:normal;text-transform:none;font-variant: normal;">Recent Accounting Guidance Not Yet Effective</p> <p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606).” This topic provides for five principles which should be followed to determine the appropriate amount and timing of revenue recognition for the transfer of goods and services to customers. The principles in this ASU should be applied to all contracts with customers regardless of industry. The amendments in this ASU are effective for fiscal years, and interim periods within those years beginning after December 15, 2016, with two transition methods of adoption allowed. Early adoption for reporting periods prior to December 15, 2016 is not permitted. In March 2015, the FASB voted to defer the effective date by one year to fiscal years, and interim periods within those fiscal years beginning after December 15, 2017 (first quarter of fiscal year 2019 for the Company), but allow adoption as of the original adoption date.  The Company has numerous different revenue sources including the sale and installation of fuel cell power plants, site engineering and construction services, sale of modules, BOPs and spare parts, extended warranty service agreements, sale of electricity under power purchase agreements, license fees and royalty income from manufacturing and technology transfer agreements and customer-sponsored Advanced Technologies projects.  This requires application of various revenue recognition methods under current accounting guidance.  Although we anticipate that, upon adoption of this new ASU the timing of revenue recognition for certain of our revenue sources might change, we are still evaluating the financial statement impacts of the guidance in this ASU and determining which transition method we will utilize. In May 2016, the FASB issued ASU 2016-12, “Revenue from Contracts with Customers (Topic 606).”  This topic provides narrow-scope improvements and practical expedients regarding collectability, presentation of sales tax collected from customers, non-cash consideration, contract modifications at transition, completed contracts at transition and other technical corrections.  We have initiated a review of the contracts for our significant revenue streams to understand the impact of the adoption of this ASU.</p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">In February 2016, the FASB issued ASU 2016-02, “Leases” which, for operating leases, requires a lessee to recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in its balance sheet. The standard also requires a lessee to recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term, on a generally straight-line basis. This ASU is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years (first quarter of fiscal year 2020 for the Company). Early adoption is permitted. The Company has both operating and capital leases (refer to Note 18. Commitments and contingences) as well as sale-leasebacks accounted for under the finance method and may have other arrangements that contain embedded leases as characterized in this ASU.  We expect that adoption of this ASU will result in the recognition of right-of-use assets and lease liabilities not currently recorded in our consolidated financial statements under existing accounting guidance. However we are still evaluating all of the Company’s contractual arrangements and the impact that adoption of ASU 2016-02 will have on the Company’s consolidated financial statements.</p></div>
CY2016Q4	fcel	Long Term Stack Residual Value LongTermStackResidualValue	0
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	38200000
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	34100000
CY2017	fcel	Letter Of Credit Date Of Expiration LetterOfCreditDateOfExpiration	2019-04-01
CY2017Q4	us-gaap	Customer Advances Current CustomerAdvancesCurrent	3000000
CY2016Q4	us-gaap	Customer Advances Current CustomerAdvancesCurrent	5300000
CY2017Q4	fcel	Short Term Project Assets ShortTermProjectAssets	0
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0
CY2016	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0
CY2015	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0
CY2017	fcel	Excess Service Agreements Term ExcessServiceAgreementsTerm	P5Y
CY2017	us-gaap	Extended Product Warranty Description ExtendedProductWarrantyDescription	We warranty our products for a specific period of time against manufacturing or performance defects. Our U.S. warranty is limited to a term generally 15 months after shipment or 12 months after acceptance of our products.
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	348000
CY2016Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	516000
CY2017Q4	fcel	Reserve For Performance Guarantees ReserveForPerformanceGuarantees	2200000
CY2016Q4	fcel	Reserve For Performance Guarantees ReserveForPerformanceGuarantees	3300000
CY2017Q4	fcel	Loss Reserve On Service Agreements LossReserveOnServiceAgreements	1100000
CY2016Q4	fcel	Loss Reserve On Service Agreements LossReserveOnServiceAgreements	2700000
CY2016Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	5411000
CY2017Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	18162000
CY2016Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	13651000
CY2017Q4	fcel	Commercial Customers Accounts Receivable CommercialCustomersAccountsReceivable	59235000
CY2016Q4	fcel	Commercial Customers Accounts Receivable CommercialCustomersAccountsReceivable	19062000
CY2017Q4	fcel	Long Term Stack Residual Value LongTermStackResidualValue	987000
CY2017Q4	fcel	Future License Fees To Be Paid FutureLicenseFeesToBePaid	18000000
CY2017	fcel	Reduced Royalty Percentage ReducedRoyaltyPercentage	0.030
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-700000
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	300000
CY2015	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	1700000
CY2017	us-gaap	Restructuring And Related Activities Completion Date RestructuringAndRelatedActivitiesCompletionDate	2016-11-30
CY2017	us-gaap	Restructuring And Related Cost Expected Number Of Positions Eliminated RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated	96
CY2017Q4	us-gaap	Restructuring And Related Cost Number Of Positions Eliminated Inception To Date Percent RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDatePercent	0.17
CY2016Q4	fcel	Restructuring And Related Activities Production Capacity RestructuringAndRelatedActivitiesProductionCapacity	25
CY2016Q4	fcel	Restructuring And Related Activities Production Capacity RestructuringAndRelatedActivitiesProductionCapacity	50
CY2017Q4	us-gaap	Government Contract Receivable GovernmentContractReceivable	1934000
CY2016Q4	us-gaap	Government Contract Receivable GovernmentContractReceivable	2463000
CY2017Q4	us-gaap	Government Contract Receivable Unbilled Amounts GovernmentContractReceivableUnbilledAmounts	7352000
CY2016Q4	us-gaap	Government Contract Receivable Unbilled Amounts GovernmentContractReceivableUnbilledAmounts	3068000
CY2017Q4	fcel	Us Government Accounts Receivable USGovernmentAccountsReceivable	9286000
CY2016Q4	fcel	Us Government Accounts Receivable USGovernmentAccountsReceivable	5531000
CY2017Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	41073000
CY2017Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	20065000
CY2016Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	25286000
CY2017Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	54431000
CY2016Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	48520000
CY2017Q4	fcel	Completed Standard Component CompletedStandardComponent	46300000
CY2016Q4	fcel	Completed Standard Component CompletedStandardComponent	40600000
CY2017Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	200000
CY2016Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	800000
CY2017Q4	fcel	Long Term Project Assets Construction In Progress LongTermProjectAssetsConstructionInProgress	40900000
CY2017	fcel	Number Of Project Assets NumberOfProjectAssets	4
CY2016	fcel	Number Of Project Assets NumberOfProjectAssets	1
CY2017Q4	us-gaap	Sale Leaseback Transaction Net Book Value SaleLeasebackTransactionNetBookValue	30200000
CY2016Q4	us-gaap	Sale Leaseback Transaction Net Book Value SaleLeasebackTransactionNetBookValue	6200000
CY2017	fcel	Depreciation Expense On Project Assets DepreciationExpenseOnProjectAssets	4100000
CY2016	fcel	Depreciation Expense On Project Assets DepreciationExpenseOnProjectAssets	700000
CY2015	fcel	Depreciation Expense On Project Assets DepreciationExpenseOnProjectAssets	0
CY2016Q4	fcel	Fair Value Of Acquired Long Term Project Assets FairValueOfAcquiredLongTermProjectAssets	2300000
CY2017Q4	fcel	Fair Value Of Acquired Long Term Project Assets FairValueOfAcquiredLongTermProjectAssets	1900000
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	128274000
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	116989000
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	84709000
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	80349000
CY2017	us-gaap	Depreciation Depreciation	4400000
CY2016	us-gaap	Depreciation Depreciation	4300000
CY2015	us-gaap	Depreciation Depreciation	4100000
	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0
CY2017	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0
CY2017Q4	fcel	Advance Payments To Vendors AdvancePaymentsToVendors	1035000
CY2016Q4	fcel	Advance Payments To Vendors AdvancePaymentsToVendors	1247000
CY2017Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	129000
CY2016Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	152000
CY2016Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	1007000
CY2017	us-gaap	Lessee Finance Lease Term Of Contract LesseeFinanceLeaseTermOfContract	P36M
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5407000
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	7775000
CY2017Q4	us-gaap	Replacement Reserve Escrow ReplacementReserveEscrow	0
CY2016Q4	us-gaap	Replacement Reserve Escrow ReplacementReserveEscrow	8353000
CY2017Q4	us-gaap	Unbilled Receivables Not Billable At Balance Sheet Date UnbilledReceivablesNotBillableAtBalanceSheetDate	12806000
CY2016Q4	us-gaap	Unbilled Receivables Not Billable At Balance Sheet Date UnbilledReceivablesNotBillableAtBalanceSheetDate	5714000
CY2017Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	97000
CY2016Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	225000
CY2017Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	2627000
CY2016Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	2123000
CY2017	fcel	Deferred Finance Costs Amortization Period DeferredFinanceCostsAmortizationPeriod	P5Y
CY2016Q2	fcel	Number Of Customers Under Agreement NumberOfCustomersUnderAgreement	1
CY2017Q4	us-gaap	Contractual Obligation ContractualObligation	1600000
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	5315000
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	4183000
CY2017Q4	fcel	Accrued Contract And Operating Costs AccruedContractAndOperatingCosts	37000
CY2016Q4	fcel	Accrued Contract And Operating Costs AccruedContractAndOperatingCosts	0
CY2017Q4	fcel	Accrued Material Purchase AccruedMaterialPurchase	2396000
CY2016Q4	fcel	Accrued Material Purchase AccruedMaterialPurchase	6908000
CY2017Q4	fcel	Accrued Service And Performance AccruedServiceAndPerformance	3319000
CY2016Q4	fcel	Accrued Service And Performance AccruedServiceAndPerformance	6030000
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6966000
CY2016Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3263000
CY2017	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	600000
CY2016	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	300000
CY2017	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	800000
CY2016	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	700000
CY2017Q4	fcel	Increase In Reserve For Service Agreement Costs IncreaseInReserveForServiceAgreementCosts	1600000
CY2016Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	660000
CY2016Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1408000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	87791000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	28281000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	59510000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Repayments Of Principal In Next Twelve Months LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths	28583000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	4518000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	4863000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	4057000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	4089000
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal After Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive	43025000
CY2017Q4	fcel	Long Term Debt And Capital Lease Obligations And Debt Issuance Costs Including Current Maturities LongTermDebtAndCapitalLeaseObligationsAndDebtIssuanceCostsIncludingCurrentMaturities	89135000
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	800000
CY2016Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	700000
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2017	us-gaap	Revenue Other Financial Services RevenueOtherFinancialServices	24400000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2016	us-gaap	Revenue Other Financial Services RevenueOtherFinancialServices	26600000
CY2015	us-gaap	Revenue Other Financial Services RevenueOtherFinancialServices	16300000
CY2017Q2	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	4500000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P4Y
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	200000
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4450000
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3359000
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3119000
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.022
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.015
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.017
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.795
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.801
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.803
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	246923
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	103819
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	40792
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	309950
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	44.88
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	1.50
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	94.63
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.81
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.50
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.44
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.24
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2017Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	309950
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y
CY2017Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	23.81
CY2017Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	280664
CY2017Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	26.00
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	70000
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	50000
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber	990035
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Granted ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted	2510216
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	392458
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Forfeitures ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures	99107
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber	3008686
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	9.52
CY2017	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	1.48
CY2017	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	12.39
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	6.62
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	2.52
CY2017	fcel	Restricted Stock Awards Weighted Average Remaining Life RestrictedStockAwardsWeightedAverageRemainingLife	P2Y6M
CY2017Q4	fcel	Restricted Stock Awards Outstanding Intrinsic Value RestrictedStockAwardsOutstandingIntrinsicValue	6100000
CY2017	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	86001
CY2016	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	24379
CY2015	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	2399
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-49723000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-46708000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-26459000
CY2017	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	100000
CY2016	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	200000
CY2015	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	100000
CY2017	fcel	Eso Pperiodforwhichsaleofsharesisrestricted ESOPperiodforwhichsaleofsharesisrestricted	P6M
CY2017	fcel	Weighted Average Expected Life Assumption For Employee Stock Purchase Plan WeightedAverageExpectedLifeAssumptionForEmployeeStockPurchasePlan	P6M
CY2016	fcel	Weighted Average Expected Life Assumption For Employee Stock Purchase Plan WeightedAverageExpectedLifeAssumptionForEmployeeStockPurchasePlan	P6M
CY2015	fcel	Weighted Average Expected Life Assumption For Employee Stock Purchase Plan WeightedAverageExpectedLifeAssumptionForEmployeeStockPurchasePlan	P6M
CY2017	fcel	Weighted Average Risk Free Interest Rate For Employee Stock Purchase Plan WeightedAverageRiskFreeInterestRateForEmployeeStockPurchasePlan	0.0046
CY2016	fcel	Weighted Average Risk Free Interest Rate For Employee Stock Purchase Plan WeightedAverageRiskFreeInterestRateForEmployeeStockPurchasePlan	0.0030
CY2015	fcel	Weighted Average Risk Free Interest Rate For Employee Stock Purchase Plan WeightedAverageRiskFreeInterestRateForEmployeeStockPurchasePlan	0.0007
CY2017	fcel	Volatility For Employee Stock Purchase Plan VolatilityForEmployeeStockPurchasePlan	0.750
CY2016	fcel	Volatility For Employee Stock Purchase Plan VolatilityForEmployeeStockPurchasePlan	0.370
CY2015	fcel	Volatility For Employee Stock Purchase Plan VolatilityForEmployeeStockPurchasePlan	0.720
CY2017	fcel	Weighted Average Dividend Yield For Employee Stock Purchase Plan WeightedAverageDividendYieldForEmployeeStockPurchasePlan	0.00
CY2016	fcel	Weighted Average Dividend Yield For Employee Stock Purchase Plan WeightedAverageDividendYieldForEmployeeStockPurchasePlan	0.00
CY2015	fcel	Weighted Average Dividend Yield For Employee Stock Purchase Plan WeightedAverageDividendYieldForEmployeeStockPurchasePlan	0.00
CY2017	fcel	Employee Stock Purchase Plan Weighted Average Fair Value Of Shares Issued EmployeeStockPurchasePlanWeightedAverageFairValueOfSharesIssued	1.76
CY2016	fcel	Employee Stock Purchase Plan Weighted Average Fair Value Of Shares Issued EmployeeStockPurchasePlanWeightedAverageFairValueOfSharesIssued	6.86
CY2017Q2	fcel	Employee Stock Purchase Plan Suspended Date EmployeeStockPurchasePlanSuspendedDate	2017-05-01
CY2017	fcel	Employer Matching Contribution Percentage EmployerMatchingContributionPercentage	0.02
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	500000
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	600000
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	400000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-4136000
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3981000
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-2951000
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	40000
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	500000
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	300000
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0
CY2017	fcel	Franchise Tax Expense FranchiseTaxExpense	500000
CY2016	fcel	Franchise Tax Expense FranchiseTaxExpense	400000
CY2015	fcel	Franchise Tax Expense FranchiseTaxExpense	200000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.340
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.340
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.340
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.013
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.002
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.011
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.009
CY2017	fcel	Effective Income Tax Rate Reconciliation Net Operating Loss Adjustment EffectiveIncomeTaxRateReconciliationNetOperatingLossAdjustment	0.046
CY2016	fcel	Effective Income Tax Rate Reconciliation Net Operating Loss Adjustment EffectiveIncomeTaxRateReconciliationNetOperatingLossAdjustment	-0.033
CY2015	fcel	Effective Income Tax Rate Reconciliation Net Operating Loss Adjustment EffectiveIncomeTaxRateReconciliationNetOperatingLossAdjustment	-0.047
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.019
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.009
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.008
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.003
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.016
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.382
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.301
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.273
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.001
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.011
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.009
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	11158000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	9625000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	605000
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	1276000
CY2017Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	13398000
CY2016Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	12772000
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	282022000
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	265799000
CY2017Q4	fcel	Deferred Tax Assets Deferred License Revenue DeferredTaxAssetsDeferredLicenseRevenue	7850000
CY2016Q4	fcel	Deferred Tax Assets Deferred License Revenue DeferredTaxAssetsDeferredLicenseRevenue	8616000
CY2017Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	111000
CY2016Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	278000
CY2017Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	5095000
CY2016Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4653000
CY2017Q4	fcel	Deferred Tax Assets Grant Revenue DeferredTaxAssetsGrantRevenue	1522000
CY2016Q4	fcel	Deferred Tax Assets Grant Revenue DeferredTaxAssetsGrantRevenue	1327000
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	321761000
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	304346000
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	321761000
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	304346000
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0
CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Research And Development Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedResearchAndDevelopmentCosts	3377000
CY2016Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Research And Development Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedResearchAndDevelopmentCosts	3377000
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3377000
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3377000
CY2017Q4	fcel	Federal Operating Loss Carryforwards FederalOperatingLossCarryforwards	752700000
CY2017Q4	fcel	State Operating Loss Carryforwards StateOperatingLossCarryforwards	414700000
CY2017Q4	fcel	Tax Credits State TaxCreditsState	11600000
CY2017Q4	fcel	Amount Of Tax Credits To Expire AmountOfTaxCreditsToExpire	600000
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15700000
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15700000
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0
CY2016	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	257769
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	42620752
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	13304630
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1344428
CY2017	fcel	Lease Payment Terms LeasePaymentTerms	P36M
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1600000
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1800000
CY2015	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1700000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	1181000
CY2015	fcel	Accrued Sale Of Common Stock AccruedSaleOfCommonStock	494000
CY2017	fcel	Accrued Purchase Of Fixed Assets AccruedPurchaseOfFixedAssets	2490000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	910000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	403000
CY2016	fcel	Accrued Sale Of Common Stock AccruedSaleOfCommonStock	357000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	381000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	377000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	3289000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	6541000
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	353000
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	211000
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	54000
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	10000
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	4000
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	0
CY2017Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	632000
CY2017Q4	us-gaap	Recorded Unconditional Purchase Obligation RecordedUnconditionalPurchaseObligation	29100000
CY2017	us-gaap	Interest Paid InterestPaid	2715000
CY2016	us-gaap	Interest Paid InterestPaid	1941000
CY2015	us-gaap	Interest Paid InterestPaid	677000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	2000
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	80000
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	8000
CY2017	fcel	Common Stock Issued For Employee Stock Purchase Plan In Settlement Of Prior Year Accrued Employee Contributions CommonStockIssuedForEmployeeStockPurchasePlanInSettlementOfPriorYearAccruedEmployeeContributions	50000
CY2016	fcel	Common Stock Issued For Employee Stock Purchase Plan In Settlement Of Prior Year Accrued Employee Contributions CommonStockIssuedForEmployeeStockPurchasePlanInSettlementOfPriorYearAccruedEmployeeContributions	105000
CY2015	fcel	Common Stock Issued For Employee Stock Purchase Plan In Settlement Of Prior Year Accrued Employee Contributions CommonStockIssuedForEmployeeStockPurchasePlanInSettlementOfPriorYearAccruedEmployeeContributions	169000
CY2017	fcel	Noncash Reclass Of Inventory To Project Assets NoncashReclassOfInventoryToProjectAssets	7282000
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	2289000
CY2017	fcel	Non Cash Acquisition Project Assets NonCashAcquisitionProjectAssets	2386000
CY2016	fcel	Accrued Purchase Of Fixed Assets AccruedPurchaseOfFixedAssets	3952000
CY2017	fcel	Accrued Purchase Of Project Assets AccruedPurchaseOfProjectAssets	2380000
CY2016	fcel	Accrued Purchase Of Project Assets AccruedPurchaseOfProjectAssets	1797000
CY2017Q1	us-gaap	Revenues Revenues	17002000
CY2017Q2	us-gaap	Revenues Revenues	20417000
CY2017Q3	us-gaap	Revenues Revenues	10358000
CY2017Q4	us-gaap	Revenues Revenues	47889000
CY2017Q1	us-gaap	Gross Profit GrossProfit	1813000
CY2017Q2	us-gaap	Gross Profit GrossProfit	383000
CY2017Q3	us-gaap	Gross Profit GrossProfit	-2626000
CY2017Q4	us-gaap	Gross Profit GrossProfit	3164000
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-10928000
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-11496000
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-14330000
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-8181000
CY2017Q1	us-gaap	Profit Loss ProfitLoss	-13685000
CY2017Q2	us-gaap	Profit Loss ProfitLoss	-13238000
CY2017Q3	us-gaap	Profit Loss ProfitLoss	-17001000
CY2017Q4	us-gaap	Profit Loss ProfitLoss	-9979000
CY2017Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2017Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2017Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2017Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2017Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-14485000
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-14038000
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-17801000
CY2017Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-10779000
CY2017Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.39
CY2017Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.33
CY2017Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.31
CY2017Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.17
CY2016Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-16173000
CY2016Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-11810000
CY2016Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-13662000
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.14
CY2016Q1	us-gaap	Revenues Revenues	33482000
CY2016Q2	us-gaap	Revenues Revenues	28581000
CY2016Q3	us-gaap	Revenues Revenues	21716000
CY2016Q4	us-gaap	Revenues Revenues	24473000
CY2016Q1	us-gaap	Gross Profit GrossProfit	-166000
CY2016Q2	us-gaap	Gross Profit GrossProfit	-157000
CY2016Q3	us-gaap	Gross Profit GrossProfit	434000
CY2016Q4	us-gaap	Gross Profit GrossProfit	-468000
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-11517000
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-12708000
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-10323000
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-11805000
CY2016Q1	us-gaap	Profit Loss ProfitLoss	-11779000
CY2016Q2	us-gaap	Profit Loss ProfitLoss	-15414000
CY2016Q3	us-gaap	Profit Loss ProfitLoss	-11067000
CY2016Q4	us-gaap	Profit Loss ProfitLoss	-12948000
CY2016Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2016Q2	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2016Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2016Q4	us-gaap	Dividends Preferred Stock DividendsPreferredStock	800000
CY2016Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-12512000
CY2016Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.48
CY2016Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.56
CY2016Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.38
CY2016Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.41
CY2016	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.82

Files In Submission

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$FCEL
FUELCELL ENERGY INC Stock $fcel

2017 Form 10-K Financial Statement

#000156459018000401 Filed on January 11, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCEL FUELCELL ENERGY INC Stock $fcel

2017 Form 10-K Financial Statement

#000156459018000401 Filed on January 11, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCEL
FUELCELL ENERGY INC Stock $fcel