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Project assets (Details) (USD $) In Thousands, unless otherwise specified | Apr. 30, 2015 | Oct. 31, 2014
--- | --- | ---
Project assets [Abstract] |  |
Project assets | $ 9,945 fcel_Projectassets | $ 784 fcel_Projectassets

X
- Definition Project assets + References No definition available. + Details
Name: | fcel_Projectassets
Namespace Prefix: | fcel_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | fcel_ProjectassetsAbstract
Namespace Prefix: | fcel_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration