Leases - Lease Liability Maturity Schedule (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Feb. 01, 2020	Jan. 31, 2020
Operating
Fiscal 2021 (remaining six months)	$ 868
2022	798
2023	683
2024	377
Total future minimum lease payments	2,726
Less: interest	(111)
Present value of lease liabilities	2,615	$ 2,928
Finance Leases
Fiscal 2021 (remaining six months)	1,516
2022	2,293
2023	1,506
2024	1,092
Total Finance Lease Maturities	6,407
Less: interest	(438)
Present value of lease liabilities	$ 5,969		$ 3,612