XML 60 R47.htm IDEA: XBRL DOCUMENT
v3.23.1

Accrued Liabilities - Schedule of Accrued Liabilities (Parenthetical) (Details) - USD ($) $ in Millions | Apr. 30, 2023 | Oct. 31, 2022
--- | --- | ---
Schedule Of Accrued Liabilities [Line Items] |  |
Loss reserve on service agreements | $ 7.2 | $ 7.3
Bridgeport Fuel Cell Project |  |
Schedule Of Accrued Liabilities [Line Items] |  |
Reserve for performance guarantees | $ 5.3 | $ 4.1

X
- Definition loss reserve on service agreements + References No definition available. + Details
Name: | fcel_LossReserveOnServiceAgreements
Namespace Prefix: | fcel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition reserve for performance guarantees + References No definition available. + Details
Name: | fcel_ReserveForPerformanceGuarantees
Namespace Prefix: | fcel_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Schedule of accrued liabilities. + References No definition available. + Details
Name: | fcel_ScheduleOfAccruedLiabilitiesLineItems
Namespace Prefix: | fcel_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=fcel_BridgeportFuelCellProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |