Other Current Assets - Schedule of Other Current Assets (Details) - USD ($) $ in Thousands		Apr. 30, 2018	Oct. 31, 2017
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Advance payments to vendors	[1]	$ 2,714	$ 1,035
Deferred finance costs	[2]	129	129
Prepaid expenses and other	[3]	5,095	5,407
Other current assets		$ 7,938	$ 6,571

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

[2] Represents the current portion of direct deferred finance costs that relate primarily to securing the $40.0 million loan facility with NRG which is being amortized over the five-year life of the facility.

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