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Note 7 - Diluted Net Income Per Share (Detail) - Diluted Net Income Per Share (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Feb. 24, 2013
Feb. 26, 2012
Feb. 24, 2013
Feb. 26, 2012
Net income applicable to Common Stockholders (in Dollars) $ 4,789 $ 4,765 $ 18,068 $ 9,917
Weighted average shares for basic net income per share 25,839 25,538 25,752 25,944
Effect of dilutive securities:        
Stock options and restricted stock units 828 287 740 261
Weighted average shares for diluted net income per share 26,667 25,825 26,492 26,205
Diluted net income per share (in Dollars per share) $ 0.18 $ 0.18 $ 0.68 $ 0.38