Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	May 02, 2020	May 04, 2019	Jan. 30, 2021
Income Taxes
Effective income tax rate (as a percent)	2.40%	37.90%
Period of cumulative loss	3 years
Period of profit reflected historically	3 years
Valuation allowance	$ 59,100
Income tax benefit	$ (6,517)	$ 3,957
Forecast
Income Taxes
Income tax benefit			$ (5,600)