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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Computation of Diluted Net Income Per Share (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
May 26, 2013
May 27, 2012
May 29, 2011
Computation of Diluted Net Income Per Share [Abstract]      
Net income applicable to Common Stockholders (in Dollars) $ 22,587 $ 12,696 $ 3,920
Denominator:      
Weighted average shares for basic net income per share 25,830 25,849 26,397
Effect of dilutive securities:      
Stock options and restricted stock units 796 277 229
Weighted average shares for diluted net income per share 26,626 26,126 26,626
Diluted net income per share (in Dollars per share) $ 0.85 $ 0.49 $ 0.15