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Computation of Earnings per Share
 6 Months Ended
Nov. 30, 2015
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 months ended November 30, 2015 and 2014:
 
Three Months Ended 
 November 30,
 
Six Months Ended 
 November 30,
 
2015
 
2014
 
2015
 
2014
Denominator:
 
 
 
 
 
 
 
Denominator for basic earnings per share - weighted average common shares outstanding (including shares issuable for vested restricted stock units)
24,440

 
24,404

 
24,426

 
24,380

Effect of unvested restricted stock units
7

 
4

 
7

 
13

Diluted shares used in per share calculation
24,447


24,408


24,433


24,393

Net income
$
2,190

 
$
4,795

 
$
4,660

 
$
9,566

Earnings per share:
 
 
 
 
 
 
 
Basic
$
0.09

 
$
0.20


$
0.19


$
0.39

Diluted
$
0.09

 
$
0.20


$
0.19


$
0.39


We did not include 113 shares in the calculation of diluted earnings per share for the three and six months ended November 30, 2015 and 83 for the three and six months ended November 31, 2014 as to do so would be antidilutive.