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Debt - Other Instruments (Details) |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 18, 2023 USD ($) | Apr. 30, 2023 USD ($) position | Jan. 31, 2019 USD ($) position | Nov. 30, 2015 USD ($) position | Oct. 31, 2024 USD ($) | Oct. 31, 2023 USD ($) | Oct. 31, 2022 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of long term debt |  |  |  |  | $ 11,699,000 | $ 47,830,000 | $ 9,544,000
Long-term line of credit |  |  |  |  | 70,067,000 | 77,510,000 |
Liberty Bank Term Loan Agreement (Bridgeport Fuel Cell Project) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term line of credit |  |  |  |  | 5,825,000 |  |
Connecticut Green Bank Loan (Subordinated Back Leverage Loan Facility) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term line of credit |  |  |  |  | 3,500,000 |  |
Back Leverage Financing | Liberty Lender |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate (as a percent) | 6.75% |  |  |  |  |  |
Connecticut Green Bank Loans |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of Debt | $ 3,000,000 |  |  |  |  |  |
Finance Obligation for Sale-Lease Back Transactions |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term line of credit |  |  |  |  | 18,811,000 | 18,814,000 |
Finance obligations for sale leaseback agreements |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Future payments included in financing obligation for the remaining lease |  |  |  |  | $ 10,500,000 |  |
Purchase right percentage of projected assets at fair market value |  |  |  |  | 31.00% |  |
Finance obligations for sale leaseback agreements | PNC Energy Capital, LLC |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term line of credit |  |  |  |  | $ 18,800,000 |  |
State of Connecticut Loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term line of credit |  |  |  |  | $ 6,024,000 | $ 6,908,000 |
Debt instrument, face amount |  |  |  | $ 10,000,000 |  |  |
Interest rate (as a percent) |  |  |  | 2.00% |  |  |
Debt instrument term |  |  |  | 15 years |  |  |
Debt instrument, payment terms, period principal payments are deferred |  |  |  | 4 years |  |  |
Debt instrument, date of first required payment |  |  |  | Dec. 01, 2019 |  |  |
Amount of loan forgiveness |  |  | $ 2,000,000 |  |  |  |
Loans Forgiveness Terms |  |  |  |  | if the Company created 165 full-time positions and retained 538 full-time positions for two consecutive years (as amended from time to time, the “Employment Obligation”) as measured on October 28, 2017 (as amended from time to time, the “Target Date”). The Assistance Agreement was subsequently amended in April 2017 to extend the Target Date by two years to October 28, 2019. |  |
Number of full time positions required to be created | position |  |  | 91 | 165 |  |  |
Number of full time positions required to be retained | position |  | 538 | 538 | 538 |  |  |
Consecutive term for average number of employees |  | 24 months | 24 months | 2 years | 24 months |  |
Principal payable number of employee under employee obligation target |  | $ 14,225 |  |  | $ 14,225 |  |
Number of minimum full time positions required to be maintained | position |  | 91 |  |  |  |  |
Number of minimum full time positions required to be maintained including additional employment positions | position |  | 629 |  |  |  |  |
Additional credits to be earned |  | $ 2,000,000 |  |  |  |  |
Number of days within job audit |  |  |  |  | 90 days |  |
Average number of full time positions |  |  |  |  | 389 |  |
Amount of loan reclassified to current |  |  |  |  | $ 2,100,000 |  |
Number of days following employment period |  | 90 days |  |  |  |  |
Amount of fee and interest payable |  |  |  |  | $ 0 |  |
State of Connecticut Loan | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount of loan forgiveness |  |  |  | $ 5,000,000 |  |  |

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Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |