$FCEL
FUELCELL ENERGY INC Stock $fcel

$fcel Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000156459020001558 Filed on January 22, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q3
Revenue	$60.75M	$17.88M	$12.11M
YoY Change	-32.07%	-62.66%	16.91%
Cost Of Revenue	$82.02M	$16.74M	$14.17M
YoY Change	-5.01%	-62.58%	9.1%
Gross Profit	-$21.27M	$1.143M	-$2.056M
YoY Change	-787.65%	-63.87%	-21.71%
Gross Profit Margin	-35.01%	6.39%	-16.98%
Selling, General & Admin	$31.87M	$5.580M	$6.100M
YoY Change	27.97%	-21.63%	-3.33%
% of Gross Profit		488.19%
Research & Development	$13.79M	$7.430M	$6.320M
YoY Change	-39.58%	75.65%	17.17%
% of Gross Profit		650.04%
Depreciation & Amortization	$12.35M	$2.120M	$2.230M
YoY Change	42.84%	4.95%	1.36%
% of Gross Profit		185.48%
Operating Expenses	$45.66M	$13.01M	$12.42M
YoY Change	-4.33%	14.73%	6.1%
Operating Profit	-$66.93M	-$11.87M	-$14.47M
YoY Change	49.96%	45.09%	1.0%
Interest Expense	$10.62M	-$2.420M	$2.434M
YoY Change	17.32%	4.31%	6.8%
% of Operating Profit
Other Income/Expense, Net	$93.00K	$200.0K	$1.042M
YoY Change	-97.21%	-61.54%	-365.14%
Pretax Income	-$77.46M	-$14.09M	-$15.87M
YoY Change	53.84%	41.18%	-6.68%
Income Tax	$100.0K	$10.00K	$15.00K
% Of Pretax Income
Net Earnings	-$77.57M	-$14.10M	-$15.88M
YoY Change	63.87%	41.26%	-6.59%
Net Earnings / Revenue	-127.68%	-78.82%	-131.14%
Basic Earnings Per Share	-$1.82		-$2.45
Diluted Earnings Per Share	-$1.82	-$1.817M	-$2.45
COMMON SHARES
Basic Shares Outstanding	55.08M		7.191M
Diluted Shares Outstanding	55.08M		7.191M

Balance Sheet

Concept	2019	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$9.400M	$39.30M	$48.70M
YoY Change	-76.08%	-20.28%	36.41%
Cash & Equivalents	$9.400M	$39.29M	$87.26M
Short-Term Investments
Other Short-Term Assets	$9.400M	$8.592M	$14.30M
YoY Change	-34.72%	30.76%	137.9%
Inventory	$54.50M	$53.58M	$60.10M
Prepaid Expenses
Receivables	$11.00M	$9.280M	$39.40M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$84.30M	$130.3M	$162.6M
YoY Change	-35.3%	-35.97%	12.45%
LONG-TERM ASSETS
Property, Plant & Equipment	$41.10M	$48.20M	$46.20M
YoY Change	-14.73%	10.65%	10.33%
Goodwill		$4.075M
YoY Change		0.0%
Intangibles		$9.592M
YoY Change		0.0%
Long-Term Investments
YoY Change
Other Assets	$182.7M	$13.51M	$135.8M
YoY Change	23.28%	-18.24%	725.78%
Total Long-Term Assets	$249.1M	$210.1M	$195.6M
YoY Change	18.56%	16.55%	13.28%
TOTAL ASSETS
Total Short-Term Assets	$84.30M	$130.3M	$162.6M
Total Long-Term Assets	$249.1M	$210.1M	$195.6M
Total Assets	$333.4M	$340.4M	$358.2M
YoY Change	-2.06%	-11.3%	12.9%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$16.90M	$22.59M	$44.10M
YoY Change	-25.22%	-46.98%	403.6%
Accrued Expenses	$6.500M	$7.632M	$12.30M
YoY Change	38.3%	-58.48%	-6.26%
Deferred Revenue		$11.35M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$22.90M	$18.50M	$15.30M
YoY Change	23.78%	-36.43%	-32.3%
Total Short-Term Liabilities	$62.70M	$60.12M	$83.60M
YoY Change	4.33%	-38.7%	56.41%
LONG-TERM LIABILITIES
Long-Term Debt	$106.4M	$86.60M	$92.20M
YoY Change	22.86%	11.03%	39.48%
Other Long-Term Liabilities	$28.70M	$71.62M	$17.30M
YoY Change	70.83%	12.33%	-75.4%
Total Long-Term Liabilities	$135.1M	$71.62M	$109.5M
YoY Change	30.66%	12.33%	-19.74%
TOTAL LIABILITIES
Total Short-Term Liabilities	$62.70M	$60.12M	$83.60M
Total Long-Term Liabilities	$135.1M	$71.62M	$109.5M
Total Liabilities	$197.9M	$163.5M	$193.1M
YoY Change	21.04%	-16.14%	22.53%
SHAREHOLDERS EQUITY
Retained Earnings		-$990.9M
YoY Change		5.02%
Common Stock		$1.073B
YoY Change		2.7%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$363.0K
YoY Change		29.64%
Treasury Stock Shares		$13.04K
Shareholders Equity	$135.6M	$82.19M	$95.51M
YoY Change
Total Liabilities & Shareholders Equity	$333.4M	$340.4M	$358.2M
YoY Change	-2.06%	-11.3%	12.9%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	-$77.57M	-$14.10M	-$15.88M
YoY Change	63.87%	41.26%	-6.59%
Depreciation, Depletion And Amortization	$12.35M	$2.120M	$2.230M
YoY Change	42.84%	4.95%	1.36%
Cash From Operating Activities	-$30.57M	-$13.03M	-$12.57M
YoY Change	-287.31%	-7.13%	-34.67%
INVESTING ACTIVITIES
Capital Expenditures	-$69.30M	-$15.22M	-$8.780M
YoY Change	35.19%	72.76%	81.78%
Acquisitions
YoY Change
Other Investing Activities		$0.00	$0.00
YoY Change
Cash From Investing Activities	-$69.30M	-$15.22M	-$8.780M
YoY Change	35.19%	72.76%	82.16%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$48.40M
YoY Change	191.26%
Cash From Financing Activities	59.66M	21.18M	3.550M
YoY Change	115.23%	-42.05%	-73.7%
NET CHANGE
Cash From Operating Activities	-30.57M	-13.03M	-12.57M
Cash From Investing Activities	-69.30M	-15.22M	-8.780M
Cash From Financing Activities	59.66M	21.18M	3.550M
Net Change In Cash	-40.46M	-7.070M	-17.80M
YoY Change	461.26%	-151.57%	68.56%
FREE CASH FLOW
Cash From Operating Activities	-$30.57M	-$13.03M	-$12.57M
Capital Expenditures	-$69.30M	-$15.22M	-$8.780M
Free Cash Flow	$38.73M	$2.190M	-$3.790M
YoY Change	-42.69%	-141.95%	-73.7%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Small Business EntitySmallBusiness	true
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	06810
CY2019	dei	City Area Code CityAreaCode	203
CY2019	dei	Local Phone Number LocalPhoneNumber	825-6000
CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.0001 par value per share
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--10-31
CY2019	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	1-14204
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	06-0853042
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	3 Great Pasture Road
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Danbury
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	CT
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	21264000
CY2018Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	16793000
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	71619000
CY2019Q4	us-gaap	Goodwill Goodwill	4075000
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	9489000
CY2019Q4	us-gaap	Assets Assets	333446000
CY2019Q4	us-gaap	Debt Current DebtCurrent	21916000
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	22594000
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	7632000
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	11347000
CY2018Q4	fcel	Preferred Stock Obligation Of Subsidiary Current PreferredStockObligationOfSubsidiaryCurrent	952000
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	60121000
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CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	39291000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	5806000
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	9280000
CY2018Q4	us-gaap	Inventory Net InventoryNet	53575000
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	8592000
CY2018Q4	us-gaap	Assets Current AssetsCurrent	130303000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	35142000
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	42440268000
CY2019Q2	us-gaap	Share Price SharePrice	3.12
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CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3292000
CY2019Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	7684000
CY2018Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	13759000
CY2019Q4	us-gaap	Inventory Net InventoryNet	54515000
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CY2019Q4	us-gaap	Assets Current AssetsCurrent	84319000
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CY2019Q4	us-gaap	Inventory Noncurrent InventoryNoncurrent	2179000
CY2019Q4	fcel	Long Term Project Assets LongTermProjectAssets	144115000
CY2018Q4	fcel	Long Term Project Assets LongTermProjectAssets	99600000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	41134000
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CY2018Q4	us-gaap	Assets Assets	340421000
CY2018Q4	us-gaap	Debt Current DebtCurrent	17596000
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CY2018Q4	us-gaap	Common Stock Value CommonStockValue	1000
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CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-403000
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	363000
CY2018Q4	us-gaap	Treasury Stock Deferred Employee Stock Ownership Plan TreasuryStockDeferredEmployeeStockOwnershipPlan	363000
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CY2019Q4	us-gaap	Common Stock Value CommonStockValue	19000
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CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	82021000
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CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	93000
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-77459000
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CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-62168000
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.82
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CY2017	fcel	Depreciation Include Property Plant And Equipment And Project Assets DepreciationIncludePropertyPlantAndEquipmentAndProjectAssets	8518000
CY2019	fcel	Amortization Of Bond Premium AmortizationOfBondPremium	6097000
CY2018	fcel	Amortization Of Bond Premium AmortizationOfBondPremium	5957000
CY2017	fcel	Amortization Of Bond Premium AmortizationOfBondPremium	6256000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3035000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	20360000
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0
CY2019	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-624000
CY2018	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	0
CY2017	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	0
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	29000
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	223000
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-581000
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-716000
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-760000
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-165000
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-4842000
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-24169000
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	35388000
CY2019	fcel	Increase Decrease In Contract With Customer Unbilled Receivables IncreaseDecreaseInContractWithCustomerUnbilledReceivables	4488000
CY2018	fcel	Increase Decrease In Contract With Customer Unbilled Receivables IncreaseDecreaseInContractWithCustomerUnbilledReceivables	-24562000
CY2017	fcel	Increase Decrease In Contract With Customer Unbilled Receivables IncreaseDecreaseInContractWithCustomerUnbilledReceivables	15888000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6427000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-31714000
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	7972000
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2120000
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2264000
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	714000
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-173000
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-19846000
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	25020000
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	8571000
CY2018	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	13091000
CY2017	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	17877000
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3302000
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	352000
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	2377000
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-11345000
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-2290000
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	5996000
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1261000
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-906000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-30572000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	16322000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-71845000
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2151000
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	10028000
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	12351000
CY2019	fcel	Investment In Long Term Project Assets InvestmentInLongTermProjectAssets	31675000
CY2018	fcel	Investment In Long Term Project Assets InvestmentInLongTermProjectAssets	41232000
CY2017	fcel	Investment In Long Term Project Assets InvestmentInLongTermProjectAssets	19726000
CY2019	fcel	Payments To Acquisition Of Asset PaymentsToAcquisitionOfAsset	35474000
CY2018	fcel	Payments To Acquisition Of Asset PaymentsToAcquisitionOfAsset	0
CY2017	fcel	Payments To Acquisition Of Asset PaymentsToAcquisitionOfAsset	-633000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-69300000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-51260000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-31444000
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	48395000
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	16616000
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	69596000
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	206000
CY2019	fcel	Proceeds From Sale Of Common Stock And Warrant Exercises Net ProceedsFromSaleOfCommonStockAndWarrantExercisesNet	43573000
CY2018	fcel	Proceeds From Sale Of Common Stock And Warrant Exercises Net ProceedsFromSaleOfCommonStockAndWarrantExercisesNet	10455000
CY2017	fcel	Proceeds From Sale Of Common Stock And Warrant Exercises Net ProceedsFromSaleOfCommonStockAndWarrantExercisesNet	39396000
CY2019	fcel	Payment Of Preferred Dividends And Return Of Capital PaymentOfPreferredDividendsAndReturnOfCapital	1840000
CY2018	fcel	Payment Of Preferred Dividends And Return Of Capital PaymentOfPreferredDividendsAndReturnOfCapital	4178000
CY2017	fcel	Payment Of Preferred Dividends And Return Of Capital PaymentOfPreferredDividendsAndReturnOfCapital	4156000
CY2019	fcel	Proceeds From Issuance Of Common Stock Issued For Stock Plans And Related Expenses ProceedsFromIssuanceOfCommonStockIssuedForStockPlansAndRelatedExpenses	23000
CY2018	fcel	Proceeds From Issuance Of Common Stock Issued For Stock Plans And Related Expenses ProceedsFromIssuanceOfCommonStockIssuedForStockPlansAndRelatedExpenses	0
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	59655000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	27717000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	72292000
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-244000
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	12000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-40461000
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-align:justify;margin-bottom:0pt;margin-top: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-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p> <p style="text-align:justify;margin-bottom:0pt;margin-top: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, valuation of derivatives, 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> <p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p>
CY2019	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p> <p style="text-align:justify;margin-bottom:0pt;margin-top: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-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p> <p style="text-align:justify;margin-bottom:0pt;margin-top: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” that amends the accounting and disclosure requirements for leases.  The new guidance requires that a lessee shall recognize a right-of-use (“ROU”) asset and a corresponding lease liability, initially measured at the present value of the lease payments, in its balance sheet.  Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the Consolidated Statements of Operations.  The Company was required to adopt the new guidance on November 1, 2019.  In July 2018, the FASB issued an amendment to the new leasing standard which provides an alternative transition method that allows companies to recognize a cumulative effect adjustment to the opening balance sheet upon adoption.  The Company intends to elect this alternative transition method and forgo the adjustments to comparative-period financial information.</p> <p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p> <p style="text-align:justify;margin-bottom:0pt;margin-top: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 both operating and capital leases (refer to Note 20. “Commitments and Contingencies”) as well as sale-leaseback transactions that are accounted for under the finance method.  The new standard provides entities with several practical expedient elections.  Among them, the Company intends to elect the package of practical expedients that permits the Company to not reassess prior conclusions related to its leasing arrangements, lease classifications and initial direct costs. In addition, the Company plans to elect the practical expedients to not separate lease and non-lease components, to use hindsight in determining the lease terms and impairment of ROU assets, and to not apply the new standard’s recognition requirements to short-term leases or use the portfolio approach to a group of leases with similar characteristics. Upon adoption of this ASU, the Company will record ROU assets and the present value of its lease liabilities which are currently not recognized on its Consolidated Balance Sheet.  The Company is in the process of implementing changes to its business processes, systems and controls to support the new lease standard and its disclosure requirements.</p> <p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p> <p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">On adoption, the Company expects to recognize a lease liability of approximately $10.3 million and corresponding ROU assets of approximately $10.1 million.  Any cumulative effect of the adoption recorded to accumulated deficit is not expected to be significant.  The Company also does not expect there to be a significant net effect on the Consolidated Statements of Operations, however, what was previously presented as rent expense related to operating leases will be recognized as interest expense on the Company’s minimum lease obligation and depreciation of right-of-use asset.</p> <p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"> </p>
CY2019Q2	us-gaap	Stockholders Equity Reverse Stock Split StockholdersEquityReverseStockSplit	1-for-12 reverse stock split
CY2019Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.084
CY2019Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	183411230
CY2019Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15284269
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	225000000
CY2019Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	250000
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	30300000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	40900000
CY2019Q4	fcel	Reserves For Obligations ReservesForObligations	17900000
CY2018Q4	fcel	Reserves For Obligations ReservesForObligations	17700000
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	5700000
CY2018Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	3800000
CY2019	fcel	Letter Of Credit Date Of Expiration LetterOfCreditDateOfExpiration	2025-08-01
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0
CY2018	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0
CY2017	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0
CY2019	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.
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	144000
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	147000
CY2019Q4	fcel	Reserve For Performance Guarantees ReserveForPerformanceGuarantees	800000
CY2018Q4	fcel	Reserve For Performance Guarantees ReserveForPerformanceGuarantees	1100000
CY2019Q4	fcel	Loss Reserve On Service Agreements LossReserveOnServiceAgreements	3300000
CY2018Q4	fcel	Loss Reserve On Service Agreements LossReserveOnServiceAgreements	900000
CY2019Q4	fcel	Long Term Stack Residual Value LongTermStackResidualValue	987000
CY2018Q4	fcel	Long Term Stack Residual Value LongTermStackResidualValue	1206000
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-100000
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	300000
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-700000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	10300000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10100000
CY2019	us-gaap	Gross Profit GrossProfit	-21269000
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	11300000
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	23100000
CY2019	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	6600000
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	40200000
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	28100000
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	204300000
CY2019Q2	us-gaap	Restructuring And Related Cost Number Of Positions Eliminated RestructuringAndRelatedCostNumberOfPositionsEliminated	135
CY2019Q2	us-gaap	Restructuring And Related Cost Number Of Positions Eliminated Period Percent RestructuringAndRelatedCostNumberOfPositionsEliminatedPeriodPercent	0.30
CY2019Q2	us-gaap	Restructuring Charges RestructuringCharges	0
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	31228000
CY2018	us-gaap	Restructuring Charges RestructuringCharges	0
CY2019	us-gaap	Restructuring And Related Activities Completion Date RestructuringAndRelatedActivitiesCompletionDate	2016-11-30
CY2019	us-gaap	Restructuring And Related Cost Expected Number Of Positions Eliminated RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated	96
CY2019Q4	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
CY2019Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	2227000
CY2018Q4	us-gaap	Accounts Receivable Billed For Long Term Contracts Or Programs AccountsReceivableBilledForLongTermContractsOrPrograms	7415000
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	6139000
CY2018Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	10632000
CY2019Q4	fcel	Commercial Customers Accounts Receivable CommercialCustomersAccountsReceivable	8366000
CY2018Q4	fcel	Commercial Customers Accounts Receivable CommercialCustomersAccountsReceivable	18047000
CY2019Q4	fcel	Advanced Technologies Including Us Government Amount Billed Receivable AdvancedTechnologiesIncludingUSGovernmentAmountBilledReceivable	1065000
CY2018Q4	fcel	Advanced Technologies Including Us Government Amount Billed Receivable AdvancedTechnologiesIncludingUSGovernmentAmountBilledReceivable	1865000
CY2019Q4	fcel	Advanced Technologies Including Us Government Unbilled Receivables AdvancedTechnologiesIncludingUSGovernmentUnbilledReceivables	1545000
CY2018Q4	fcel	Advanced Technologies Including Us Government Unbilled Receivables AdvancedTechnologiesIncludingUSGovernmentUnbilledReceivables	3127000
CY2019Q4	fcel	Advanced Technologies Including Us Government Accounts Receivable AdvancedTechnologiesIncludingUSGovernmentAccountsReceivable	2610000
CY2018Q4	fcel	Advanced Technologies Including Us Government Accounts Receivable AdvancedTechnologiesIncludingUSGovernmentAccountsReceivable	4992000
CY2019Q4	fcel	Accounts Receivable Net And Unbilled Receivables AccountsReceivableNetAndUnbilledReceivables	10976000
CY2018Q4	fcel	Accounts Receivable Net And Unbilled Receivables AccountsReceivableNetAndUnbilledReceivables	23039000
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	25466000
CY2018Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	24467000
CY2018Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	29108000
CY2019Q4	fcel	Inventory Current And Non Current InventoryCurrentAndNonCurrent	56694000
CY2018Q4	fcel	Inventory Current And Non Current InventoryCurrentAndNonCurrent	53575000
CY2019Q4	fcel	Completed Standard Component CompletedStandardComponent	23500000
CY2018Q4	fcel	Completed Standard Component CompletedStandardComponent	19000000
CY2019	fcel	Number Of Project Assets NumberOfProjectAssets	6
CY2018	fcel	Number Of Project Assets NumberOfProjectAssets	5
CY2019Q4	us-gaap	Sale Leaseback Transaction Net Book Value SaleLeasebackTransactionNetBookValue	59200000
CY2018Q4	us-gaap	Sale Leaseback Transaction Net Book Value SaleLeasebackTransactionNetBookValue	28600000
CY2019Q4	fcel	Long Term Project Assets Gross LongTermProjectAssetsGross	160000000
CY2018Q4	fcel	Long Term Project Assets Gross LongTermProjectAssetsGross	107700000
CY2019Q4	fcel	Project Asset Accumulated Depreciation ProjectAssetAccumulatedDepreciation	15900000
CY2018Q4	fcel	Project Asset Accumulated Depreciation ProjectAssetAccumulatedDepreciation	8100000
CY2019	us-gaap	Property Plant And Equipment Useful Life PropertyPlantAndEquipmentUsefulLife	P20Y
CY2019Q4	fcel	Long Term Project Assets Construction In Progress LongTermProjectAssetsConstructionInProgress	84900000
CY2018Q4	fcel	Long Term Project Assets Construction In Progress LongTermProjectAssetsConstructionInProgress	71000000
CY2018	fcel	Impairment On Termination Of Project ImpairmentOnTerminationOfProject	500000
CY2019	fcel	Depreciation Expense On Project Assets DepreciationExpenseOnProjectAssets	6800000
CY2018	fcel	Depreciation Expense On Project Assets DepreciationExpenseOnProjectAssets	4100000
CY2017	fcel	Depreciation Expense On Project Assets DepreciationExpenseOnProjectAssets	4100000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	133044000
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	135223000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	91910000
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	87019000
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	2800000
CY2019	us-gaap	Depreciation Depreciation	4900000
CY2018	us-gaap	Depreciation Depreciation	4600000
CY2017	us-gaap	Depreciation Depreciation	4400000
CY2019Q3	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0
CY2019Q4	fcel	Advance Payments To Vendors AdvancePaymentsToVendors	1899000
CY2018Q4	fcel	Advance Payments To Vendors AdvancePaymentsToVendors	2696000
CY2018Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	97000
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	4022000
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	5799000
CY2019Q4	fcel	Contract With Customer Unbilled Receivables Noncurrent ContractWithCustomerUnbilledReceivablesNoncurrent	3588000
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	17596000
CY2018Q4	fcel	Contract With Customer Unbilled Receivables Noncurrent ContractWithCustomerUnbilledReceivablesNoncurrent	9385000
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	4914000
CY2018Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	2914000
CY2016Q2	fcel	Number Of Customers Under Agreement NumberOfCustomersUnderAgreement	1
CY2019Q4	us-gaap	Contractual Obligation ContractualObligation	2300000
CY2018Q4	us-gaap	Contractual Obligation ContractualObligation	2000000
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2282000
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2550000
CY2019Q4	fcel	Accrued Service And Power Purchase Agreement Costs AccruedServiceAndPowerPurchaseAgreementCosts	4047000
CY2018Q4	fcel	Accrued Service And Power Purchase Agreement Costs AccruedServiceAndPowerPurchaseAgreementCosts	2029000
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	4979000
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	2906000
CY2019	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	100000
CY2018	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	400000
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	100000
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	600000
CY2019Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	141000
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	341000
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3180000
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	1311000
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	4251000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	106317000
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	87878000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	21916000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	84401000
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	70282000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Repayments Of Principal In Next Twelve Months LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths	20974000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Two LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo	10586000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Three LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree	11410000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Four LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour	10417000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal In Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive	10736000
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Maturities Repayments Of Principal After Year Five LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive	21917000
CY2019Q4	fcel	Long Term Debt And Capital Lease Obligations And Debt Issuance Costs Including Current Maturities LongTermDebtAndCapitalLeaseObligationsAndDebtIssuanceCostsIncludingCurrentMaturities	86040000
CY2019Q4	us-gaap	Lessee Finance Lease Term Of Contract1 LesseeFinanceLeaseTermOfContract1	P36M
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	125000000
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.96
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0163
CY2019Q4	us-gaap	Share Price SharePrice	0.24
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P8Y
CY2019	fcel	Class Of Warrants Or Rights Issued Value ClassOfWarrantsOrRightsIssuedValue	3900
CY2019	fcel	Common Stock Issued During Period Warrants Issued CommonStockIssuedDuringPeriodWarrantsIssued	6000000
CY2019Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	6000000
CY2017Q4	fcel	Excess Percentage Of Common Shares Outstanding Approved ExcessPercentageOfCommonSharesOutstandingApproved	0.199
CY2019Q2	fcel	Excess Percentage Of Common Shares Outstanding Approved ExcessPercentageOfCommonSharesOutstandingApproved	0.199
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	250000
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q1	fcel	Redemption Value Adjustment Of Net Loss Attributable To Common Stockholders RedemptionValueAdjustmentOfNetLossAttributableToCommonStockholders	8600000
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	600000
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	800000
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2017Q2	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	4500000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P4Y
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2730000
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3154000
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4450000
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.028
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.022
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.727
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.795
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.00
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	26958
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	2031
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	24927
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	124.08
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	362.58
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	104.73
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	21.36
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	18.00
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2019Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	24927
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y10M24D
CY2019Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	104.73
CY2019Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	24927
CY2019Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	104.73
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	0
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber	364215
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Granted ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted	71885
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	177961
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Forfeitures ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeitures	67024
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber	191115
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	24.36
CY2019	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	4.40
CY2019	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	20.59
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	22.40
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	16.11
CY2019	fcel	Restricted Stock Awards Weighted Average Remaining Life RestrictedStockAwardsWeightedAverageRemainingLife	P9M18D
CY2019Q4	fcel	Restricted Stock Awards Outstanding Intrinsic Value RestrictedStockAwardsOutstandingIntrinsicValue	45500
CY2019	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	29454
CY2018	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	13226
CY2017	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	7167
CY2019	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	100000
CY2018	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	300000
CY2017	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	100000
CY2019	fcel	Eso Pperiodforwhichsaleofsharesisrestricted ESOPperiodforwhichsaleofsharesisrestricted	P6M
CY2019	fcel	Employer Matching Contribution Percentage EmployerMatchingContributionPercentage	0.02
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	500000
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	500000
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	500000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-74133000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-47314000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-49723000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3326000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3035000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-4136000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.002
CY2017	fcel	Franchise Tax Expense FranchiseTaxExpense	500000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.232
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.340
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017Q4	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2019	fcel	Tax Cuts And Jobs Act Of2017 Deferred Tax Assets Valuation Allowance Increase Decrease TaxCutsAndJobsActOf2017DeferredTaxAssetsValuationAllowanceIncreaseDecrease	2000000
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0
CY2019	fcel	Franchise Tax Expense FranchiseTaxExpense	200000
CY2018	fcel	Franchise Tax Expense FranchiseTaxExpense	500000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.007
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.013
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
CY2019	fcel	Effective Income Tax Rate Reconciliation Net Operating Loss Expiration EffectiveIncomeTaxRateReconciliationNetOperatingLossExpiration	0.013
CY2018	fcel	Effective Income Tax Rate Reconciliation Net Operating Loss Expiration EffectiveIncomeTaxRateReconciliationNetOperatingLossExpiration	-0.046
CY2017	fcel	Effective Income Tax Rate Reconciliation Net Operating Loss Expiration EffectiveIncomeTaxRateReconciliationNetOperatingLossExpiration	0.046
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.015
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.019
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.001
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-2.016
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.008
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.254
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	1.912
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.382
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.001
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.060
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.001
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	7446000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	7767000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	905000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	426000
CY2019Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	12645000
CY2018Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	12295000
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	217430000
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	202643000
CY2019Q4	fcel	Deferred Tax Assets Deferred License Revenue DeferredTaxAssetsDeferredLicenseRevenue	4264000
CY2018Q4	fcel	Deferred Tax Assets Deferred License Revenue DeferredTaxAssetsDeferredLicenseRevenue	4765000
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	312000
CY2018Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	238000
CY2019Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	9200000
CY2018Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4374000
CY2019Q4	fcel	Deferred Tax Assets Grant Revenue DeferredTaxAssetsGrantRevenue	798000
CY2018Q4	fcel	Deferred Tax Assets Grant Revenue DeferredTaxAssetsGrantRevenue	910000
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	253000000
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	233418000
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	250985000
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	231403000
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	2015000
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	2015000
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Research And Development Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedResearchAndDevelopmentCosts	2321000
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Research And Development Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedResearchAndDevelopmentCosts	2356000
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	306000
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	341000
CY2019Q4	fcel	Federal Operating Loss Carryforwards FederalOperatingLossCarryforwards	850000000
CY2019Q4	fcel	State Operating Loss Carryforwards StateOperatingLossCarryforwards	438800000
CY2019Q4	fcel	Tax Credits State TaxCreditsState	8800000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15700000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15700000
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	0
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7219257
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4386601
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3644230
CY2019	fcel	Lease Payment Terms LeasePaymentTerms	P36M
CY2019	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1000000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	4091000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	4486000
CY2017	us-gaap	Interest Paid Net InterestPaidNet	2715000
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	48000
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	2000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	2000
CY2017	fcel	Common Stock Issued For Employee Stock Purchase Plan In Settlement Of Prior Year Accrued Employee Contributions CommonStockIssuedForEmployeeStockPurchasePlanInSettlementOfPriorYearAccruedEmployeeContributions	50000
CY2018	fcel	Noncash Reclass Between Inventory And Project Assets NoncashReclassBetweenInventoryAndProjectAssets	10793000
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1200000
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1600000
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	922000
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	1240000
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	1221000
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	1022000
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	720000
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	8707000
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	13832000
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	102000
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	35000
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	4000
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	0
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	0
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	0
CY2019Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	141000
CY2019Q4	us-gaap	Recorded Unconditional Purchase Obligation RecordedUnconditionalPurchaseObligation	34600000
CY2017	fcel	Noncash Reclass Between Inventory And Project Assets NoncashReclassBetweenInventoryAndProjectAssets	7282000
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	2289000
CY2019	fcel	Non Cash Acquisition Project Assets NonCashAcquisitionProjectAssets	16704000
CY2017	fcel	Non Cash Acquisition Project Assets NonCashAcquisitionProjectAssets	2386000
CY2019	fcel	Accrued Purchase Of Fixed Assets AccruedPurchaseOfFixedAssets	71000
CY2018	fcel	Accrued Purchase Of Fixed Assets AccruedPurchaseOfFixedAssets	1579000
CY2017	fcel	Accrued Purchase Of Fixed Assets AccruedPurchaseOfFixedAssets	2490000
CY2019	fcel	Accrued Purchase Of Project Assets AccruedPurchaseOfProjectAssets	222000
CY2018	fcel	Accrued Purchase Of Project Assets AccruedPurchaseOfProjectAssets	3115000
CY2017	fcel	Accrued Purchase Of Project Assets AccruedPurchaseOfProjectAssets	2380000
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	17783000
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9216000
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	22712000
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	11041000
CY2019Q1	us-gaap	Gross Profit GrossProfit	-2205000
CY2019Q2	us-gaap	Gross Profit GrossProfit	-3640000
CY2019Q3	us-gaap	Gross Profit GrossProfit	7965000
CY2019Q4	us-gaap	Gross Profit GrossProfit	-23389000
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-15244000
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-17623000
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-1070000
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-32992000
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-17548000
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-19530000
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-5311000
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	-35179000
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-33038000
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-22876000
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-8328000
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-36003000
CY2019Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-3.97
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-17929000
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.06
CY2019Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.18
CY2019Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.23
CY2019	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.82
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	38613000
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	20830000
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	12110000
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	17884000
CY2018Q1	us-gaap	Gross Profit GrossProfit	4635000
CY2018Q2	us-gaap	Gross Profit GrossProfit	-629000
CY2018Q3	us-gaap	Gross Profit GrossProfit	-2056000
CY2018Q4	us-gaap	Gross Profit GrossProfit	1143000
CY2018	us-gaap	Gross Profit GrossProfit	3093000
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-5553000
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-12735000
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-14474000
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-11870000
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	-4183000
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	-13174000
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-15881000
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-14096000
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-8446000
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-18173000
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-17620000
CY2018Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.41
CY2018Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.74
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.45
CY2018Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.31
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-9.01

Files In Submission

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0001564590-20-001558-index-headers.html	Edgar Link	pending
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0001564590-20-001558.txt	Edgar Link	pending
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fcel-20191031.xml	Edgar Link	completed
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$FCEL
FUELCELL ENERGY INC Stock $fcel

2019 Form 10-K Financial Statement

#000156459020001558 Filed on January 22, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCEL FUELCELL ENERGY INC Stock $fcel

2019 Form 10-K Financial Statement

#000156459020001558 Filed on January 22, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FCEL
FUELCELL ENERGY INC Stock $fcel