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Earnings Per Share
3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Earnings Per Share
Note 7 – Earnings Per Share
 
The following table sets forth the computation of basic and diluted earnings per share:

   
Three Months Ended
 
   
March 31
 
(in thousands except per share data)
 
2013
  
2012
 
Numerator:
      
Net income
 $11,820  $11,869 
          
Denominator:
        
Basic earnings per share:
        
Weighted average shares
  15,539   15,407 
Diluted earnings per share:
        
Effect of dilutive stock options
  53   49 
Adjusted weighted average shares
  15,592   15,456 
          
Earnings per share:
        
Basic earnings per share
 $0.76  $0.77 
Diluted earnings per share
  0.76   0.77 
 
Options to purchase 88,246 common shares were excluded from the diluted calculations above for the three months ended March 31, 2013, because the exercise prices on the options were greater than the average market price for the period. Unvested restricted stock grants were also used in the calculation of diluted earnings per share based on the treasury method. Options to purchase 248,555 common shares were excluded from the diluted calculations above for the three months ended March 31, 2012.