Supplemental Cash Flow Information - Schedule of Cash Flow, Supplemental Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Supplemental Cash Flow Information [Abstract]
Cash interest paid	$ 4,486	$ 2,715	$ 1,941
Income taxes paid	2	2	80
Noncash financing and investing activity:
Common stock issued for Employee Stock Purchase Plan in settlement of prior year accrued employee contributions		50	105
Noncash reclass between inventory and project assets	10,793	7,282
Assumption of debt in conjunction with asset acquisition		2,289
Acquisition of project assets		2,386
Series C Preferred stock conversions	20,220
Accrued sale of common stock, cash received in a subsequent period			357
Accrued purchase of fixed assets, cash paid in subsequent period	1,579	2,490	3,952
Accrued purchase of project assets, cash paid in subsequent period	$ 3,115	$ 2,380	$ 1,797