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Supplemental Cash Flow Information - Schedule of Cash Flow, Supplemental Disclosures (Details) - USD ($)
$ in Thousands
 12 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Oct. 31, 2020
Supplemental Cash Flow Information      
Cash interest paid $ 1,556 $ 5,765 $ 8,376
Income taxes paid 2 6 2
Noncash financing and investing activity:      
Noncash reclassification between inventory and project assets 1,260 7,052 1,152
Noncash reclassifications from inventory to fixed assets 1,552    
Noncash reclassifications from other assets to project assets 2,375    
Director stock compensation 305 275 104
Reclassification of value of executive share-based compensation     434
Addition of operating lease liabilities   1,459 899
Addition of operating lease right-of-use assets   1,459 899
Cashless warrant exercises     25,994
Reclassification to equity of warrant liability for warrant exercises   21,170 9,783
Accrued purchase of fixed assets, cash to be paid in subsequent period 4,396 1,537 39
Accrued purchase of project assets, cash to be paid in subsequent period $ 6,444 $ 6,707 $ 502