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Leases - Lessee Arrangements, Narrative (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 cost $ 137 $ 128 $ 395 $ 406
Finance lease, cost $ 37 $ 0 $ 112 $ 0
Minimum        
Lessee, Lease, Description [Line Items]        
Remaining terms of operating leases 1 year   1 year  
Maximum        
Lessee, Lease, Description [Line Items]        
Remaining terms of operating leases 16 years   16 years