Net Income (Loss) from Continuing Operations Per Share - Schedule of Weighted Average Shares Used in the Computation of Basic and Diluted Net Income (Loss) from Continuing Operations Per Share (Detail) - shares shares in Thousands	12 Months Ended
	May 02, 2021	May 03, 2020	Apr. 28, 2019
Earnings Per Share [Abstract]
weighted-average common shares outstanding, basic	12,300	12,378	12,462
dilutive effect of stock-based compensation	22		86
weighted-average common shares outstanding, diluted	12,322	12,378	12,548