Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019	Feb. 01, 2020
Operating Loss Carryforwards
Income tax (benefit) expense	$ (37)	$ 40	$ (41)	$ 80
Effective rate, percent	0.20%	(0.70%)	0.10%	(0.70%)
Tax credit carryforward					$ 1,100
Charitable contribution carryforwards					$ 700
Minimum
Operating Loss Carryforwards
State operating loss carryforwards, period					5 years
Maximum
Operating Loss Carryforwards
State operating loss carryforwards, period					20 years
Federal
Operating Loss Carryforwards
Net operating loss carryforwards					$ 162,200
State
Operating Loss Carryforwards
Net operating loss carryforwards					$ 83,200