Note 8 - Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 25, 2014	May. 26, 2013
Federal	$ 3,480	$ 4,785	$ 2,808
State	43	157	(18)
Foreign	71	56	56
Total	3,594	4,998	2,846
Deferred:
Federal	3,789	5,059	6,218
State	363	526	388
Total	4,152	5,585	6,606
Total	$ 7,746	$ 10,583	$ 9,452