Net (Loss) Income from Continuing Operations Per Share - Schedule of Weighted Average Shares Used in the Computation of Basic and Diluted Net (Loss) Income from Continuing Operations Per Share (Detail) - shares shares in Thousands	3 Months Ended								12 Months Ended
	May 03, 2020	Feb. 02, 2020	Nov. 03, 2019	Aug. 04, 2019	Apr. 28, 2019	Jan. 27, 2019	Oct. 28, 2018	Jul. 29, 2018	May 03, 2020	Apr. 28, 2019	Apr. 29, 2018
Earnings Per Share [Abstract]
weighted-average common shares outstanding, basic	12,297	12,409	12,408	12,399	12,384	12,438	12,515	12,510	12,378	12,462	12,431
dilutive effect of stock-based compensation										86	202
weighted-average common shares outstanding, diluted	12,297	12,420	12,408	12,410	12,384	12,465	12,551	12,600	12,378	12,548	12,633