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Computation of Earnings Per Common Share (Tables)
3 Months Ended
Mar. 31, 2019
Earnings Per Share [Abstract]  
Computation of earnings per common share
Earnings per common share have been computed based on the following for the:
 
Three Months Ended 
 March 31

2019
 
2018
Average number of common shares outstanding for basic calculation
7,888,885

 
7,873,948

Average potential effect of common shares in the Directors Plan (1)
199,456

 
199,270

Average number of common shares outstanding used to calculate diluted earnings per common share
8,088,341

 
8,073,218

Net income
$
3,496

 
$
3,462

Earnings per common share
 
 
 
Basic
$
0.44

 
$
0.44

Diluted
$
0.43

 
$
0.43

(1) 
Exclusive of shares held in the Rabbi Trust