Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Oct. 31, 2020
Lessee Lease Description [Line Items]
Finance lease ROU assets	$ 30		$ 40
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet		us-gaap:PropertyPlantAndEquipmentNet
Finance lease, liability	$ 23		$ 38
Finance Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent		us-gaap:OtherLiabilitiesNoncurrent
Operating lease expense	$ 378	$ 156
Operating lease, weighted average remaining lease term	20 years
Operating lease, weighted average discount rate	7.50%
Operating lease, payments	$ 284	$ 211
Minimum [Member]
Lessee Lease Description [Line Items]
Operating and finance lease, remaining lease term	1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating and finance lease, remaining lease term	26 years