Leases - Summary of Undiscounted Maturities of Operating Lease and Finance Lease Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Nov. 01, 2019
Operating Leases
2020 (remaining)	$ 1,330
2021	1,395
2022	1,229
2023	752
2024	716
Thereafter	14,809
Total undiscounted lease payments	20,231
Less imputed interest	(9,355)
Total discounted lease payments	10,876	$ 10,300
Finance Leases
2020 (remaining)	41
2021	26
2022	8
Total undiscounted lease payments	75
Less imputed interest	(19)
Total discounted lease payments	$ 56