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Note 4 - Earnings Per Share
 6 Months Ended
Jun. 30, 2012
Earnings Per Share [Text Block]
4 – Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share:

   
Three Months Ended June 30,
   
Six Months Ended June 30,
 
   
2012
   
2011
   
2012
   
2011
 
Numerator:
                       
  Numerator for basic and diluted earnings per share –
        Net income available to common shareholders
  $ 17,422,000     $ 12,518,000     $ 33,328,000     $ 19,785,000  
                                 
Denominator–
                               
   Denominator for basic earnings per share – weighted average shares outstanding
    38,675,464       37,831,211       38,531,254       37,726,829  
   Effect of dilutive securities–
                               
       Employee and director stock options and restricted share awards
    868,722       1,183,785       1,074,120       1,202,492  
   Denominator for diluted earnings per share – adjusted weighted average shares outstanding and assumed conversions
    39,544,186       39,014,996       39,605,374       38,929,321  
                                 
Basic earnings per common share
  $ .45     $ .33     $ .86     $ .52  
                                 
Diluted earnings per common share and common share equivalents
  $ .44     $ .32     $ .84     $ .51  

Options to purchase shares of common stock that were outstanding for the three months and six months ended June 30, 2012 and 2011 that were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive are as follows:

   
Three Months Ended June 30,
   
Six Months Ended June 30,
 
   
2012
   
2011
   
2012
   
2011
 
Options
    1,373,860       498,600       1,126,795       498,600  
Total anti-dilutive securities
    1,373,860       498,600       1,126,795       498,600