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Note 7 - Diluted Net Income Per Share (Details) - Diluted Net Income Per Share (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Nov. 24, 2013
Nov. 25, 2012
Nov. 24, 2013
Nov. 25, 2012
Diluted Net Income Per Share [Abstract]        
Net income applicable to Common Stockholders (in Dollars) $ 3,451 $ 8,913 $ 8,203 $ 13,279
Weighted average shares for basic net income per share 26,571 25,747 26,512 25,709
Stock options and restricted stock units 499 792 569 678
Weighted average shares for diluted net income per share 27,070 26,539 27,081 26,387
Diluted net income per share (in Dollars per share) $ 0.13 $ 0.34 $ 0.30 $ 0.50