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Net Income Per Share (Tables)
6 Months Ended
Jun. 30, 2012
Net Income Per Share [Abstract]  
Net income per share
                                 
    Three Months Ended
June 30,
    Six Months Ended
June 30,
 
    2012     2011     2012     2011  

Net income

  $ 2,641     $ 2,283     $ 4,652     $ 4,312  
   

 

 

   

 

 

   

 

 

   

 

 

 
         

Weighted average common shares outstanding

    14,297,524       14,231,692       14,290,806       14,239,180  

Dilutive effect of common stock options, warrants and restricted stock

    360,711       272,010       344,262       256,565  
   

 

 

   

 

 

   

 

 

   

 

 

 

Shares used in computation of net income per common share - diluted

    14,658,235       14,503,702       14,635,068       14,495,745  
   

 

 

   

 

 

   

 

 

   

 

 

 
         

Net income per common share - basic

  $ 0.18     $ 0.16     $ 0.33     $ 0.30  
   

 

 

   

 

 

   

 

 

   

 

 

 
         

Net income per common share - diluted

  $ 0.18     $ 0.16     $ 0.32     $ 0.30