Note 4 - Income Taxes (Details) - Reconciliation of provision for income taxes	12 Months Ended
	Aug. 31, 2013	Aug. 25, 2012	Aug. 27, 2011
Reconciliation of provision for income taxes [Abstract]
Income taxes at the statutory federal income tax rate	35.00%	35.00%	35.00%
State income taxes	3.50%	3.50%	3.70%
Adjustments to tax reserves	(0.10%)	(0.60%)	(1.10%)
Foreign tax rate differential	(0.80%)	(1.00%)	(1.00%)
Permanent and other	0.20%	0.10%	0.00%
Total	37.80%	37.00%	36.60%