XML 87 R71.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Stockholders' Equity - Schedule of Warrant Activity (Details) | 12 Months Ended
--- | ---
Oct. 31, 2018 shares
Series A Warrant [Member] |
Class of Warrant or Right, Outstanding | 7,680,000
Class of Warrant or Right, Outstanding | 7,680,000
Series C Warrants [Member] |
Class of Warrant or Right, Outstanding | 11,580,900
Common stock issued during period, warrants exercised | (11,536)
Class of Warrant or Right, Outstanding | 11,569,364
Series D Warrants [Member] |
Class of Warrant or Right, Outstanding | 2,584,174
Common stock issued during period, warrants exercised | (2,584,174)

X
- Definition Common stock issued during period warrants exercised. + References No definition available. + Details
Name: | fcel_CommonStockIssuedDuringPeriodWarrantsExercised
Namespace Prefix: | fcel_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=fcel_SeriesAWarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=fcel_SeriesCWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=fcel_SeriesDWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |