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Debt instrument, amendment description.

No definition available.

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Period Type:	duration

Loan Advance

No definition available.

Name:	fcel_LoanAdvance
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Number of connecticut employees.

No definition available.

Name:	fcel_NumberOfConnecticutEmployees
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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of employees committed to hire.

No definition available.

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Balance Type:	na
Period Type:	instant

Number of targeted connecticut employees.

No definition available.

Name:	fcel_NumberOfTargetedConnecticutEmployees
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Period Type:	instant

Optional project financing term.

No definition available.

Name:	fcel_OptionalProjectFinancingTerm
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Period Type:	duration

Promossiory note payable for each employee under 703 employee target.

No definition available.

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Term of loan.

No definition available.

Name:	fcel_TermOfLoan
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The total of collateralized agreements including securities purchased under agreements to resell (repos), borrowed securities, and secured demand notes.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Face (par) amount of debt instrument at time of issuance.

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The average effective interest rate during the reporting period.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Current portion of the total carrying amount as of the balance sheet date due within one year or the operating cycle, if longer, on all notes payable to banks paid on an installment with long term maturities. This can include the amount of any loans from the applicant firm. This does not, however, include any mortgage balances.

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Other deductions and charges as defined.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Balance Type:	debit
Period Type:	duration

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Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesCPreferredStockMember
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Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
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Name:	srt_RangeAxis=srt_MinimumMember
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Name:	srt_RangeAxis=srt_MaximumMember
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Name:	us-gaap_DebtInstrumentAxis=fcel_StateOfConnecticutMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DebtInstrumentAxis=fcel_ConnecticutDepartmentOfEconomicCommunityDevelopmentMember
Namespace Prefix:
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Namespace Prefix:
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Data Type:	na
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Name:	us-gaap_DebtInstrumentAxis=fcel_ConnecticutDevelopmentAuthorityNoteMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DebtInstrumentAxis=fcel_WebsterBankTermLoanMember
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