Note 7 - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 30, 2016	May 02, 2015
Deferred tax assets:
Accrued expenses and other	$ 5,655	$ 5,281
Inventory and amortizable assets	538	417
Total deferred tax assets	6,193	5,698
Deferred tax liabilities:
Property	14,049	14,364
Intangibles and other	2,164	2,231
Total deferred tax liabilities	16,213	16,595
Net deferred tax liabilities	10,020	10,897
Current deferred tax assets – net	4,454	4,348
Noncurrent deferred tax liabilities – net	$ 14,474	$ 15,245