Note 8 - Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 27, 2024	Apr. 29, 2023	Apr. 30, 2022
Current	$ 49,683	$ 48,287	$ 42,555
Deferred	3,433	(4,009)	6,529
Total	$ 53,116	$ 44,278	$ 49,084