Debt and Financing Obligations - Schedule of Debt (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Oct. 31, 2019
Debt Instrument [Line Items]
Capitalized lease obligations	$ 56	$ 141
Deferred finance costs	(4,160)	(3,180)
Unamortized debt discount	(5,336)	(4,251)
Total debt and financing obligations	166,245	106,317
Current portion of long-term debt and financing obligations	(17,692)	(21,916)
Long-term debt and financing obligations	148,553	84,401
Orion Energy Partners Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	80,000	14,500
Connecticut Green Bank Loans [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	10,043	7,555
Liberty Bank Term Loan Agreement (BFC Loan) [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	10,069	11,632
Fifth Third Bank Term Loan Agreement (BFC Loan) [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	10,069	11,632
Finance Obligation for Sale-Lease Back Transactions [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	49,329	45,219
State of Connecticut Loan [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	9,660	10,000
New Britain Renewable Energy Term Loan [Member]
Debt Instrument [Line Items]
Long-term Line of Credit		497
Enhanced Capital Term Loan and Security Agreement [Member]
Debt Instrument [Line Items]
Long-term Line of Credit		1,500
Liberty Bank Promissory Note (PPP Note) [Member]
Debt Instrument [Line Items]
Long-term Line of Credit	$ 6,515
Fifth Third Bank Construction Loan Agreement [Member]
Debt Instrument [Line Items]
Long-term Line of Credit		$ 11,072

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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