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Earnings Per Share
9 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract] 
Earnings Per Share
Note 8. Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share:
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
(Dollars and shares in thousands, except per share data)   2011     2010     2011     2010  
 
                               
Numerator:
                               
Numerator for basic and diluted earnings per share — Income available to common shareholders
  $ 5,244     $ 4,147     $ 13,622     $ 10,847  
 
                       
Denominator:
                               
Denominator for basic earnings per share — weighted-average shares outstanding
    16,771       16,621       16,752       16,582  
Effect of dilutive securities:
                               
Employee stock options
                       
 
                       
Denominator for diluted earnings per share — adjusted weighted-average shares outstanding
    16,771       16,621       16,752       16,582  
 
                       
Basic earnings per share
  $ 0.31     $ 0.25     $ 0.81     $ 0.65  
 
                       
Diluted earnings per share
  $ 0.31     $ 0.25     $ 0.81     $ 0.65  
 
                       
Anti-dilutive options have been excluded in the computation of diluted earnings per share because the options’ exercise prices were greater than the average market price of the common stock. For the three months ended September 30, 2011 and 2010, there were 508,032 and 428,032 average anti-dilutive options at an average exercise price of $22.09 and $23.07, per share, respectively. For the nine months ended September 30, 2011 and 2010, there were 498,472 and 403,032 average anti-dilutive options at an average exercise price of $22.09 and $23.41, per share, respectively.