Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019	Feb. 01, 2020
Operating Loss Carryforwards
Income tax (benefit) expense	$ (9)	$ 33	$ (50)	$ 113
Effective rate, percent	0.10%	6.30%	0.10%	(1.00%)
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