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Note 5 - Net Income per Common Share
9 Months Ended
Sep. 30, 2012
Earnings Per Share [Text Block]
5. Net Income per Common Share

The calculation of net income per common share for nine and three months ended September 30, 2012 and 2011 was as follows.

   
Nine Months Ended
September 30,
   
Three Months Ended
September 30,
 
(dollars and shares in thousands, except per share data)
 
2012
   
2011
   
2012
   
2011
 
Basic:
                       
Net income available to common shareholders
  $ 24,666     $ 16,015     $ 9,533     $ 6,328  
Average common shares outstanding
    20,489       19,806       21,053       19,868  
Basic net income per common  share
  $ 1.20     $ 0.81     $ 0.45     $ 0.32  
                                 
Diluted:
                               
Net income available to common shareholders
  $ 24,666     $ 16,015     $ 9,533     $ 6,328  
Average common shares outstanding
    20,489       19,806       21,053       19,868  
Adjustment for common share equivalents
    525       452       553       413  
Average common shares outstanding-diluted
    21,014       20,258       21,606       20,281  
Diluted net income per common share
  $ 1.17     $ 0.79     $ 0.44     $ 0.31  
                                 
Anti-dilutive shares
    114,256       198,225       114,256       198,482