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It refers to average sale price per share of shares sold under Open Market Sale Agreement

No definition available.

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Class of warrant or right term of warrants or rights.

No definition available.

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Class of warrants or right to purchase

No definition available.

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Class of warrants or rights charge.

No definition available.

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Represents number of warrants exercised during the period.

No definition available.

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Class of warrants or rights exercised value

No definition available.

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Represents number of warrants issued during the period.

No definition available.

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Represents remaining common stock available for issuance under the open market agreement.

No definition available.

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The number of common stock shares agreed upon to be newly issued.

No definition available.

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Its refers to gross proceeds from the Open Market Sale Agreement.

No definition available.

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Number of incremental common stock shares approved.

No definition available.

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Net proceeds from issuance of common stock.

No definition available.

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Net proceeds from issuance of common stock and warrants

No definition available.

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Net proceeds from issuance of public offerings.

No definition available.

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Option to purchase additional common stock shares.

No definition available.

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Payment of underwriting discounts and commissions

No definition available.

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Its refers to the percentage of commission paid to Agents on Aggregate gross proceeds from the sale of shares under the Open Market Sale Agreement.

No definition available.

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Reclassification to additional paid in capital revised estimated fair value of converted of warrant liability.

No definition available.

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Reserve for issuance of common stock upon exercise of warrants shares.

No definition available.

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Warrants issued, price per share.

No definition available.

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Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 505
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Aggregate number of common shares reserved for future issuance.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash inflow associated with the amount received from entity's first offering of stock to the public.

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The cash inflow from the additional capital contribution to the entity.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

No definition available.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Price of a single share of a number of saleable stocks of a company.

No definition available.

Name:	us-gaap_SharePrice
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Percentage of vesting of award under share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Number of new stock issued during the period.

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- References

No definition available.

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Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
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Data Type:	na
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Name:	us-gaap_SubsidiarySaleOfStockAxis=fcel_TwoZeroTwoTwoOpenMarketSaleAgreementMember
Namespace Prefix:
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