Note 8 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 29, 2023	Apr. 30, 2022
Deferred tax assets:
Accrued expenses and other	$ 4,671	$ 3,306
Inventory and amortizable assets	545	325
Total deferred tax assets	5,216	3,631
Deferred tax liabilities:
Property	23,715	23,863
Intangibles and other	1,315	3,591
Total deferred tax liabilities	25,030	27,454
Net deferred tax liabilities	$ 19,814	$ 23,823