Other Assets (Details) - USD ($) $ in Thousands		Jan. 31, 2017	Oct. 31, 2016
Replacement Reserve Escrow	[1]	$ 0	$ 8,353
Long-term stack residual value	[2]	657	0
Debt issuance costs	[3]	193	225
Unbilled Receivables, Not Billable	[4]	7,046	5,714
Long-term Investments and Receivables, Net	[4]	7,000	5,700
Other	[5]	2,124	2,123
Other assets, net		10,020	$ 16,415
Contractual Obligation		900
NRG Energy [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 40,000

[1] The balance as of October 31, 2016 represents receivables, which were subsequently collected and relate to project and stack replacement reserve accounts to a sale-leaseback transaction. As of January 31, 2017, the funds are recorded as long-term restricted cash.

[2] Relates to estimated residual value for module exchanges performed under the Company's service agreements where the useful life extends beyond the contractual term of the service agreement and the Company obtains title for the module from the customer upon expiration or non-renewal of the service agreement. If the Company does not obtain rights to title from the customer, the full cost of the module is expensed at the time of the module exchange.

[3] Represents the long-term portion of direct deferred finance costs relating to the Company's loan facility with NRG which is being amortized over the five-year life of the facility.

[4] Represents unbilled recoverable costs that relate to revenue recognized on customer contracts that will be billed in future periods in excess of twelve months from January 31, 2017.

[5] The Company entered into an agreement with one of its customers on June 29, 2016 which includes a fee for the purchase of the plants at the end of the term of the agreement. The option fee is payable in installments over the term of the agreement and the total paid as of January 31, 2017 is $0.9 million.