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Debt - Schedule of Debt (Details) - USD ($)
$ in Thousands
Jan. 31, 2022
Oct. 31, 2021
Debt Instrument [Line Items]    
Finance lease obligations $ 91 $ 102
Finance Lease Liability Statement Of Financial Position Extensible List Debt Current, Other Liabilities Noncurrent Debt Current, Other Liabilities Noncurrent
Deferred finance costs $ (1,447) $ (1,556)
Total debt and financing obligations 86,246 87,708
Current portion of long-term debt and financing obligations (9,722) (10,085)
Long-term debt and financing obligations 76,524 77,623
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 4,121 4,318
Liberty Bank Term Loan Agreement (Bridgeport Fuel Cell Project) [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 6,944 7,465
Fifth Third Bank Term Loan Agreement (Bridgeport Fuel Cell Project) [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 6,944 7,465
Finance Obligation for Sale-Lease Back Transactions [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit 56,381 56,492
State of Connecticut [Member]    
Debt Instrument [Line Items]    
Long-term Line of Credit $ 8,412 $ 8,622