Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating leases	$ 561	$ 613
Operating cash flows used for finance leases	2	3
Financing cash flows used for finance leases	54	49
Right-of-use assets obtained In exchange for lease liabilities:
Operating leases	3,274	534
Finance leases	$ 0	$ 34