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Computation of Earnings Per Share
 6 Months Ended
Nov. 30, 2014
Earnings Per Share [Abstract]  
Computation of Earnings Per Share
Computation of Earnings per Share
The following is a reconciliation of the denominator used in the computation of basic and diluted earnings per share for the three and six months ended November 30, 2014 and 2013:
 
Three Months Ended 
 November 30,
 
Six Months Ended 
 November 30,
 
2014
 
2013
 
2014
 
2013
Denominator:
 
 
 
 
 
 
 
Denominator for basic earnings per share - weighted average common shares outstanding (including shares issuable for vested restricted stock units)
24,404

 
24,331

 
24,380

 
24,313

Effect of unvested restricted stock units
4

 
19

 
13

 
27

Diluted shares used in per share calculation
24,408


24,350


24,393


24,340

Net income
$
4,795

 
$
5,581

 
$
9,566

 
$
11,278

Earnings per share:
 
 
 
 
 
 
 
Basic
$
0.20

 
$
0.23


$
0.39


$
0.46

Diluted
$
0.20

 
$
0.23


$
0.39


$
0.46


We did not include 83 shares in the calculation of diluted earnings per share for the three and six months ended November 30, 2014, respectively, and 8 shares in the calculation of diluted earnings per share for the three and six months ended November 30, 2013, respectively, as to do so would be antidilutive.