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v2.4.1.9

Nature of Business and Basis of Presentation (Details) (USD $) | 12 Months Ended |  |
--- | --- | --- | ---
Oct. 31, 2014 | Oct. 31, 2013 | Oct. 31, 2012 | Oct. 31, 2009 | Jun. 25, 2013 | Dec. 20, 2012
Restricted Cash and Cash Equivalents | $ 25,100,000 us-gaap_RestrictedCashAndCashEquivalents |  | $ 10,000,000 us-gaap_RestrictedCashAndCashEquivalents |  |  |  |  |
Letters of Credit Outstanding, Amount | 7,400,000 us-gaap_LettersOfCreditOutstandingAmount |  | 7,700,000 us-gaap_LettersOfCreditOutstandingAmount |  |  |  |  |
Accrued Contract and Operating Costs | 34,000 fcel_AccruedContractAndOperatingCosts |  | 87,000 fcel_AccruedContractAndOperatingCosts |  |  |  |  |
Product Warranty Accrual | 1,156,000 us-gaap_ProductWarrantyAccrual | [1] | 860,000 us-gaap_ProductWarrantyAccrual | [1] |  |  |  |
Reserve for Performance Guarantees | 800,000 fcel_ReserveForPerformanceGuarantees |  | 500,000 fcel_ReserveForPerformanceGuarantees |  |  |  |  |
Loss Reserve on Service Agreements | 3,000,000 fcel_LossReserveOnServiceAgreements |  | 3,700,000 fcel_LossReserveOnServiceAgreements |  |  |  |  |
Long-term stack residual value | 2,725,000 fcel_LongTermStackResidualValue | [2] | 2,898,000 fcel_LongTermStackResidualValue | [2] |  |  |  |
Reserve for Repair and Upgrade Program | 0 fcel_ReserveForRepairAndUpgradeProgram | [3] | 7,267,000 fcel_ReserveForRepairAndUpgradeProgram | [3] |  |  |  |
Future License Fees To Be Paid | 8,000,000 fcel_FutureLicenseFeesToBePaid |  |  |  |  |  |  |
Royalty percentage | 4.10%fcel_RoyaltyPercentage |  |  |  |  | 4.10%fcel_RoyaltyPercentage |  |
Reduced royalty percentage | 3.00%fcel_ReducedRoyaltyPercentage |  |  |  |  |  |  |
Royalty fee payment for reduction in royalty rate |  |  | 6,700,000 fcel_Royaltyfeepaymentforreductioninroyaltyrate |  |  |  |  |
License Fee and Royalty Income | 0 fcel_LicenseFeeAndRoyaltyIncome |  | 0 fcel_LicenseFeeAndRoyaltyIncome |  | 1,599,000 fcel_LicenseFeeAndRoyaltyIncome |  |  |
Convertible Debt | 0 us-gaap_ConvertibleDebt |  | 38,000,000 us-gaap_ConvertibleDebt |  |  |  | 38,000,000 us-gaap_ConvertibleDebt |
significant customer revenue percentage | 88.00%fcel_SignificantCustomerRevenuePercentage |  | 88.00%fcel_SignificantCustomerRevenuePercentage |  | 83.00%fcel_SignificantCustomerRevenuePercentage |  |  |
Foreign Currency Transaction Gain (Loss), Unrealized | 600,000 us-gaap_ForeignCurrencyTransactionGainLossUnrealized |  | 400,000 us-gaap_ForeignCurrencyTransactionGainLossUnrealized |  | 100,000 us-gaap_ForeignCurrencyTransactionGainLossUnrealized |  |  |
Restricted cash and cash equivalents - short-term | 5,523,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue |  | 5,053,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue |  |  |  |  |
Restricted cash and cash equivalents - long-term | 19,600,000 us-gaap_RestrictedCashAndCashEquivalentsNoncurrent |  | 4,950,000 us-gaap_RestrictedCashAndCashEquivalentsNoncurrent |  |  |  |  |
Cell Technology Transfer Agreement [Member] |  |  |  |  |  |  |  |
Upfront License Fee |  |  |  |  |  | 10,000,000 fcel_UpfrontLicenseFee / fcel_AgreementTypeAxis = fcel_CellTechnologyTransferAgreementMember |  |
Stack Technology Transfer and License Agreement [Member] |  |  |  |  |  |  |  |
Upfront License Fee |  |  | 7,000,000 fcel_UpfrontLicenseFee / fcel_AgreementTypeAxis = fcel_StackTechnologyTransferandLicenseAgreementMember |  |  | 10,000,000 fcel_UpfrontLicenseFee / fcel_AgreementTypeAxis = fcel_StackTechnologyTransferandLicenseAgreementMember |  |
Service and License Fee Revenues [Member] |  |  |  |  |  |  |  |
License Fee and Royalty Income | 4,300,000 fcel_LicenseFeeAndRoyaltyIncome / us-gaap_ProductOrServiceAxis = fcel_ServiceandLicenseFeeRevenuesMember |  | 4,100,000 fcel_LicenseFeeAndRoyaltyIncome / us-gaap_ProductOrServiceAxis = fcel_ServiceandLicenseFeeRevenuesMember |  |  |  |  |
FCES Germany [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 86.00%us-gaap_MinorityInterestOwnershipPercentageByParent / fcel_OwnershipPercentageByParentNoncontrollingInterestAxis = fcel_FcesGermanyMember |  |  |  |  |  |  |
Alliance Entities [Member] |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 80.00%us-gaap_MinorityInterestOwnershipPercentageByParent / fcel_OwnershipPercentageByParentNoncontrollingInterestAxis = fcel_AllianceEntitiesMember |  |  |  |  |  |  |
POSCO Energy [Member] |  |  |  |  |  |  |  |
significant customer revenue percentage | 69.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_PoscoEnergyMember |  | 54.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_PoscoEnergyMember |  | 76.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_PoscoEnergyMember |  |  |
Common stock ownership percentage | 11.00%fcel_CommonStockOwnershipPercentage / us-gaap_MajorCustomersAxis = fcel_PoscoEnergyMember |  |  |  |  |  |  |
United Illuminating [Member] |  |  |  |  |  |  |  |
significant customer revenue percentage | 9.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_UnitedIlluminatingMember |  | 0.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_UnitedIlluminatingMember |  | 0.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_UnitedIlluminatingMember |  |  |
Department of Energy [Member] |  |  |  |  |  |  |  |
significant customer revenue percentage | 4.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_DepartmentOfEnergyMember |  | 5.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_DepartmentOfEnergyMember |  | 7.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_DepartmentOfEnergyMember |  |  |
NRG Energy [Member] |  |  |  |  |  |  |  |
significant customer revenue percentage | 3.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_NRGEnergyMember |  | 0.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_NRGEnergyMember |  | 0.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_NRGEnergyMember |  |  |
Common stock ownership percentage | 6.00%fcel_CommonStockOwnershipPercentage / us-gaap_MajorCustomersAxis = fcel_NRGEnergyMember |  |  |  |  |  |  |
Dominion Bridgeport FuelCell Park [Member] |  |  |  |  |  |  |  |
significant customer revenue percentage | 3.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_DominionBridgeportFuelcellParkMember |  | 29.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_DominionBridgeportFuelcellParkMember |  | 0.00%fcel_SignificantCustomerRevenuePercentage / us-gaap_MajorCustomersAxis = fcel_DominionBridgeportFuelcellParkMember |  |  |
Restricted cash and cash equivalents - long-term | $ 15,000,000 us-gaap_RestrictedCashAndCashEquivalentsNoncurrent / us-gaap_MajorCustomersAxis = fcel_DominionBridgeportFuelcellParkMember |  |  |  |  |  |  |
Versa [Member] |  |  |  |  |  |  |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage |  |  |  |  |  |  |  | 39.00%us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage / us-gaap_BusinessAcquisitionAxis = fcel_VersaMember
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  | 61.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = fcel_VersaMember
[1] | Activity in the accrued product warranty costs during the year ended October 31, 2014 and 2013 included additions for estimates of potential future warranty obligations of $2.4 million and $1.2 million, respectively, on contracts in the warranty period and reductions related to actual warranty spend of $1.2 million and $0.3 million, respectively, as contracts progress through the warranty period or are beyond the warranty period.
[2] | Relates to expected residual value for module exchanges performed under the Company's service agreements where the useful life extends beyond the contractual term of the service agreement and the Company obtains title for the module from the customer upon expiration or non-renewal of the service agreement. If the Company does not obtain rights to title from the customer, the cost of the module is expensed at the time of the module exchange.
[3] | The balance of the accrual at October 31, 2013 related to three replacement modules due to POSCO Energy, which were delivered in the first quarter of 2014.

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