Note 8 - Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 29, 2023	Apr. 30, 2022	May 01, 2021
Statement [Line Items]
Current	$ 48,287	$ 42,555	$ 51,520
Deferred	(4,009)	6,529	2,471
Total	$ 44,278	$ 49,084	$ 53,991