Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Lessee Lease Description [Line Items]
Operating lease expense	$ 400	$ 400	$ 1,147	$ 1,143
Operating lease, weighted average remaining lease term	20 years		20 years
Operating lease, weighted average discount rate	8.30%		8.30%
Operating lease, payments	$ 400	$ 300	$ 1,084	$ 902
Minimum
Lessee Lease Description [Line Items]
Operating and finance lease, remaining lease term			1 year
Maximum
Lessee Lease Description [Line Items]
Operating and finance lease, remaining lease term			26 years