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NET INCOME PER SHARE
9 Months Ended
Sep. 30, 2013
NET INCOME PER SHARE  
NET INCOME PER SHARE

10.  NET INCOME PER SHARE

 

For the three and nine months ended September 30, 2012 and 2013, outstanding stock options were the only potentially dilutive securities. The reconciliation from basic to diluted weighted average common shares outstanding is as follows (in thousands):

 

 

 

Three Months Ended
September 30,

 

Nine months Ended
September 30,

 

 

 

2012

 

2013

 

2012

 

2013

 

Basic weighted-average common shares outstanding

 

15,560

 

15,738

 

15,517

 

15,678

 

Stock options

 

91

 

107

 

88

 

111

 

Diluted weighted-average common shares outstanding

 

15,651

 

15,845

 

15,605

 

15,789

 

 

The above calculations for the three months ended September 30, 2012 and 2013 do not include 322,000 and 29,000 shares, respectively, related to certain stock options because the effects of such were anti-dilutive. For the nine months ended September 30, 2012 and 2013, the calculation does not include 362,000 and 80,000 shares, respectively, related to certain stock options because the effect of such options was anti-dilutive.