Note 1 - Summary of Significant Accounting Policies (Details) - Stock Options, Valuation Assumptions	12 Months Ended
	Aug. 29, 2015	Aug. 30, 2014	Aug. 31, 2013
Stock Options, Valuation Assumptions [Abstract]
Risk-free interest rate	1.92%	1.90%	1.24%
Expected dividend yield	0.27%	0.27%	0.41%
Expected life in years	7 years 160 days	7 years 164 days	7 years 153 days
Expected volatility	32.20%	32.90%	33.40%