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Note 6 - Net Income Per Share (Details)
3 Months Ended
Nov. 29, 2014
Nov. 30, 2013
Earnings Per Share [Abstract]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 635us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 160us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount