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Earnings per share
3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Earnings per share

10. Earnings per share

For the three months ended March 31, 2013 and 2012, there were no adjustments to net income for purposes of calculating basic and diluted net income available to common shareholders. The following is a reconciliation of the weighted average shares used in the basic and diluted net income per common share computations.

 

     Three Months Ended
March 31,
 
     2013      2012  

Weighted average common shares-basic

     19,431,093         18,675,694   

Effect of dilutive securities:

     

Unexercised stock options net of treasury share repurchase

     260,048         440,501   
  

 

 

    

 

 

 

Weighted average common shares-diluted

     19,691,141         19,116,195   
  

 

 

    

 

 

 

Options to purchase shares of common stock with exercise prices in excess of the average market price of common shares are not included in the computation of diluted earnings per share. There were 973,037 and 714,686 outstanding options not included in the diluted earnings per share computation for the three months ended March 31, 2013 and 2012, respectively, because the inclusion of these options was anti-dilutive.