Note 8 - Income Tax - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	May 03, 2025	Apr. 27, 2024	Apr. 29, 2023
Beginning balance	$ 2,130	$ 2,096	$ 2,079
Increases due to current period tax positions	77	60	75
Decreases due to lapse of statute of limitations and audit resolutions	(22)	(26)	(58)
Ending balance	$ 2,185	$ 2,130	$ 2,096