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Note 10 - Stockholders' Equity (Tables)
9 Months Ended
Mar. 01, 2015
Notes Tables  
Schedule of Stockholders Equity [Table Text Block]
Common Stock Shares
 
 
 
 
Balance at May 25, 2014
    26,815,253  
Stock options exercised, net of shares tendered
    53,429  
Vested restricted stock units, net of shares tendered
    29,496  
Balance at March 1, 2015
    26,898,178  
         
Common Stock
 
 
 
 
Balance at May 25, 2014
  $ 27  
Stock options exercised, net of shares tendered
     
Vested restricted stock units, net of shares tendered
     
Balance at March 1, 2015
  $ 27  
         
Additional Paid-in Capital
 
 
 
 
Balance at May 25, 2014
  $ 131,488  
Stock options exercised, net of shares tendered
    122  
Vested restricted stock units, net of shares tendered
     
Taxes paid by Company for stock swaps and restricted stock units
    (12 )
Stock-based compensation expense
    1,139  
Tax benefit from stock based compensation
    211  
Balance at March 1, 2015
  $ 132,948  
         
Retained Earnings
 
 
 
 
Balance at May 25, 2014
  $ 71,554  
Net income
    9,348  
Balance at March 1, 2015
  $ 80,902  
         
Non
-
controlling Interest
 
 
 
 
Balance at May 25, 2014
  $ 1,692  
Non-controlling interest in net income
    126  
Distributions to non-controlling interest
    (196 )
Balance at March 1, 2015
  $ 1,622