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Note 7 - Diluted Net Income Per Share (Details)
3 Months Ended 6 Months Ended
Nov. 24, 2013
Nov. 25, 2012
Nov. 24, 2013
Nov. 25, 2012
Earnings Per Share [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 342,500 85,857 273,882 84,429