Other Current Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Oct. 31, 2016	Oct. 31, 2015
Line of Credit Facility, Expiration Period		2 years 6 months
Advance payments to vendors	[1]	$ 1,247	$ 2,281
Deferred Finance Costs, Current, Net	[2]	417	198
Notes Receivable		1,007	585
Prepaid Expenses and Other	[3]	7,775	3,890
Other current assets		10,446	$ 6,954
NRG Energy [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 40,000

[1] Advance payments to vendors relate to inventory purchases ahead of receipt.

[2] Primarily represents the current portion of direct deferred finance costs relating to securing a $40.0 million loan facility with NRG which is being amortized over the five-year life of the facility, and direct deferred finance costs relating to the Hercules loan and security agreement entered into in April 2016 which is being amortized over the 2.5 years life of the loan.

[3] Primarily relates to other prepaid vendor expenses including insurance, rent and lease payments.