Leases - Additional Information (Details) $ in Thousands, $ in Millions			3 Months Ended		6 Months Ended
	Feb. 20, 2023 ft²	Jan. 05, 2023 ft²	Apr. 30, 2023 USD ($)	Apr. 30, 2022 USD ($)	Apr. 30, 2023 USD ($)	Apr. 30, 2022 USD ($)	Apr. 30, 2023 CAD ($)	Apr. 30, 2023 USD ($)	Jan. 31, 2023 CAD ($)	Jan. 31, 2023 USD ($)	Oct. 31, 2022 USD ($)
Lessee Lease Description [Line Items]
Finance lease ROU assets								$ 40			$ 40
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]							Property, plant and equipment, net	Property, plant and equipment, net			Property, plant and equipment, net
Finance lease liability								$ 40			$ 40
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]							Current portion of long-term debt	Current portion of long-term debt			Current portion of long-term debt
Operating lease right-of-use assets, net								$ 8,917			$ 7,189
Operating lease liability								$ 10,037
Operating lease expense			$ 400	$ 400	$ 744	$ 779
Operating lease, weighted average remaining lease term							17 years	17 years
Operating lease, weighted average discount rate							6.95%	6.95%
Operating lease, payments			$ 300	$ 300	$ 644	$ 730
Versa Power Systems, Ltd
Lessee Lease Description [Line Items]
Area of Additional Leased Space | ft²	18,627	48,000
Operating lease right-of-use assets, net							$ 0.2	$ 100	$ 2.7	$ 2,000
Operating lease liability							$ 0.2	$ 2,000	$ 2.7	$ 2,000