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Earnings per Share (Tables)
3 Months Ended
Mar. 31, 2018
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
 
  
March 31,
 
  
2018
  
2017
 
Net income applicable to common stock
 
$
4,247,000
  
$
3,303,000
 
 
        
Basic earnings per share computation
        
Weighted average common shares outstanding
  
3,478,280
   
3,479,180
 
Earnings per share - basic
 
$
1.22
  
$
0.94
 
 
        
Diluted earnings per share computation
        
Weighted average common shares outstanding for basic earnings per share
  
3,478,280
   
3,479,180
 
Add: Dilutive effects of restricted stock
  
363
   
20
 
Weighted average common shares outstanding for dilutive earnings per share
  
3,478,643
   
3,479,200
 
Earnings per share - diluted
 
$
1.22
  
$
0.94