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Debt and Financing Obligations - Schedule of Debt (Details) - USD ($)
$ in Thousands
Oct. 31, 2021
Oct. 31, 2020
Debt Instrument [Line Items]    
Finance lease, liability $ 102 $ 38
Finance Lease Liability Statement Of Financial Position Extensible List Debt Current, Other Liabilities Noncurrent Debt Current, Other Liabilities Noncurrent
Deferred finance costs $ (1,556) $ (3,737)
Unamortized debt discount   (5,152)
Total debt and financing obligations 87,708 165,355
Current portion of long-term debt and financing obligations (10,085) (21,366)
Long-term debt and financing obligations 77,623 143,989
Orion Energy Partners Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit   80,000
Connecticut Green Bank Loan [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 4,800 4,800
Connecticut Green Bank Loan (Bridgeport Fuel Cell Project) [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 4,318 5,065
Liberty Bank Term Loan Agreement (Bridgeport Fuel Cell Project) [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 7,465 9,549
Fifth Third Bank Term Loan Agreement (Bridgeport Fuel Cell Project) [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 7,465 9,549
Finance Obligation for Sale-Lease Back Transactions [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 56,492 49,274
State of Connecticut [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit $ 8,622 9,454
Liberty Bank Promissory Note (PPP Note) [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit   $ 6,515