Note 8 - Income Tax - Reconciliation of Income Tax Rate (Details)	12 Months Ended
	May 03, 2025	Apr. 27, 2024	Apr. 29, 2023
Statutory federal income tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal benefit	2.80%	2.80%	2.90%
Other differences	(0.20%)	(0.70%)	(0.20%)
Effective income tax rate	23.60%	23.10%	23.70%