Note 4 - Income Taxes (Details) - Provision for Income Taxes (Incomplete) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Aug. 30, 2014	May 31, 2014	Mar. 01, 2014	Nov. 30, 2013	Aug. 31, 2013	May 25, 2013	Feb. 23, 2013	Nov. 24, 2012	Aug. 30, 2014	Aug. 31, 2013	Aug. 25, 2012
Provision for Income Taxes (Incomplete) [Abstract]
Federal									$ 54,005	$ 39,455	$ 43,470
Foreign									3,480	3,999	3,604
State									9,216	6,722	8,066
Total current									66,701	50,176	55,140
Federal									6,838	17,514	540
Foreign									59	151	90
State									1,828	3,083	(25)
Total deferred									8,725	20,748	605
Total	$ 18,785	$ 19,170	$ 15,577	$ 21,894	$ 17,576	$ 17,109	$ 16,573	$ 19,666	$ 75,426	$ 70,924	$ 55,745