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Note 5 - Diluted Net Income Per Share (Tables)
6 Months Ended
Nov. 26, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
   
Six
Months Ended
 
   
November
26, 2017
   
November 27
, 2016
   
November
26, 2017
   
November 27
, 2016
 
Numerator:
                               
Net income
applicable to Common Stockholders
  $
487
    $
1,326
    $
2,633
    $
4,638
 
                                 
Denominator:
                               
Weighted average share
s for basic net income per share
   
27,518
     
27,249
     
27,512
     
27,234
 
Effect of dilutive securities:
                               
Stock options and restricted stock units
   
357
     
369
     
354
     
338
 
Weighted average shares for diluted net income per share
   
27,875
     
27,618
     
27,866
     
27,572
 
                                 
Diluted net income
per share
  $
0.02
    $
0.05
    $
0.09
    $
0.17