Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 4,075	$ 4,075
Intangible assets, net	18,670	19,967
Amortization expenses	1,300
Impairment of goodwill	0	0	$ 0
Versa Acquisition [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	4,100	4,100
Intangible assets, net	18,700	20,000
Bridgeport Fuel Cell, LLC [Member]
Goodwill And Intangible Assets [Line Items]
Amortization expenses	$ 1,300	$ 1,300	$ 600