Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Revenues:
Revenues	$ 14,877	$ 16,264
Costs of revenues:
Costs of revenues	18,495	12,983
Gross (loss) profit	(3,618)	3,281
Operating expenses:
Administrative and selling expenses	8,932	5,266
Research and development expenses	1,823	1,155
Total costs and expenses	10,755	6,421
Loss from operations	(14,373)	(3,140)
Interest expense	(2,545)	(3,277)
Loss on extinguishment of debt	(11,156)
Loss on extinguishment of preferred stock obligation of subsidiary	(934)
Change in fair value of common stock warrant liability	(15,974)	(34,245)
Other (expense) income, net	(978)	531
Loss before benefit (provision) for income taxes	(45,960)	(40,131)
(Provision) benefit for income taxes		(20)
Net loss	(45,960)	(40,151)
Series B preferred stock dividends	(800)	(931)
Net loss attributable to common stockholders	$ (46,760)	$ (41,082)
Loss per share basic and diluted:
Net loss per share attributable to common stockholders	$ (0.15)	$ (0.20)
Basic and diluted weighted average shares outstanding	312,109,888	202,216,493
Series B Preferred Stock [Member]
Operating expenses:
Series B preferred stock dividends	$ (800)	$ (931)
Product [Member]
Costs of revenues:
Costs of revenues	2,366	2,016
Service and License [Member]
Revenues:
Revenues	4,913	5,612
Costs of revenues:
Costs of revenues	5,099	1,618
Generation [Member]
Revenues:
Revenues	4,891	5,442
Costs of revenues:
Costs of revenues	7,115	5,557
Advanced Technologies [Member]
Revenues:
Revenues	5,073	5,210
Costs of revenues:
Costs of revenues	$ 3,915	$ 3,792