Net Income from Continuing Operations Per Share - Schedule of Weighted Average Shares Used in the Computation of Basic and Diluted Net Income from Continuing Operations Per Share (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2021	Feb. 02, 2020	Jan. 31, 2021	Feb. 02, 2020
Earnings Per Share [Abstract]
Weighted average common shares outstanding, basic	12,305	12,409	12,297	12,405
Dilutive effect of stock-based compensation	64	11	2	16
Weighted average common shares outstanding, diluted	12,369	12,420	12,299	12,421