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Leases - Additional Information (Details) $ in Thousands |  | 12 Months Ended | 14 Months Ended
--- | --- | --- | ---
Aug. 25, 2021 USD ($) MW | Oct. 31, 2022 USD ($) | Oct. 31, 2021 USD ($) | Oct. 31, 2020 USD ($) | Oct. 31, 2022 USD ($)
Lessee Lease Description [Line Items] |  |  |  |  |
Finance lease ROU assets |  | $ 100 | $ 100 |  | $ 100
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] |  | Property, plant and equipment, net | Property, plant and equipment, net |  | Property, plant and equipment, net
Finance lease, liability |  | $ 57 | $ 102 |  | $ 57
Finance Lease Liability Statement Of Financial Position Extensible List |  | Debt Current, Other Liabilities Noncurrent | Debt Current, Other Liabilities Noncurrent |  | Debt Current, Other Liabilities Noncurrent
Operating lease expense |  | $ 1,521 | $ 1,545 | $ 1,451 |
Operating lease, weighted average remaining lease term |  | 19 years |  |  | 19 years
Operating lease, weighted average discount rate |  | 8.20% |  |  | 8.20%
Operating lease, payments |  | $ 1,438 | 1,226 | $ 1,016 |
Purchase price |  | $ 161,234 | $ 141,587 |  | $ 161,234
Remaining lease payments due |  |  |  |  | $ 4,500
Crestmark Sale-Leaseback Transaction |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Sale of plant | $ 5,300 |  |  |  |
Purchase price | $ 10,200 |  |  |  |
Power purchase agreement term | 20 years |  |  |  |
Capacity Of Plant | MW | 1.4 |  |  |  |
Initial term of lease | 10 years |  |  |  |
Down payment and initial rental payment under lease | $ 2,200 |  |  |  |
Reserve for Debt Service and Future Module Replacement | $ 2,500 |  |  |  |
Minimum |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Operating and finance lease, remaining lease term |  | 1 year |  |  |
Maximum |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |
Operating and finance lease, remaining lease term |  | 26 years |  |  |

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