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Note 6 - Net Income Per Share (Details)
3 Months Ended 6 Months Ended
Mar. 01, 2014
Feb. 23, 2013
Mar. 01, 2014
Feb. 23, 2013
Earnings Per Share [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 3,836 13,983 770 0