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Earnings per Share (Tables)
 9 Months Ended
Sep. 30, 2013
Earnings per Share [Abstract]  
Computation of earnings per share
The following table sets forth the computation of earnings per share.  Earnings per share calculations give retroactive effect to stock dividends declared by the Company.


 
 
    Three months ended
    Nine months ended
 
    September 30,
    September 30,
 
    2013
    2012
    2013
    2012
Net income applicable to common stock
$3,512,000
$3,464,000
$10,079,000
$10,666,000
         
Basic earnings per share computation
       
Weighted average common shares outstanding
   3,024,507
   3,052,628
     3,029,801
     3,059,808
Earnings per share - basic
$1.16
$1.13
$3.33
$3.49
         
Diluted earnings per share computation
       
Weighted average common shares outstanding for basic earnings per share
   3,024,507
   3,052,628
     3,029,801
     3,059,808
Add: Dilutive effects of restricted stock
          1,483
          2,066
            1,288
            1,762
Weighted average common shares outstanding for dilutive earnings per share
   3,025,990
   3,054,694
     3,031,089
     3,061,570
Earnings per share - diluted
$1.16
$1.13
$3.33
$3.48