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Note 2 - Earnings Per Share
3 Months Ended
Mar. 31, 2017
Notes to Financial Statements  
Earnings Per Share [Text Block]
Note
2.
Earnings Per Share
 
There are no convertible securities which would affect the numerator in calculating basic and diluted earnings per share; therefore, net income as presented on the Consolidated Statement of Income is used as the numerator.
 
The following table sets forth the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computation.
 
    Three Months Ended
March 31,
    2017   2016
Weighted-Average Common Shares Outstanding    
4,363,346
     
4,363,346
 
Average Treasury Stock Shares    
(276,057
)    
(282,329
)
Weighted-Average Common Shares and Common Stock Equivalents Used to Calculate Basic Earnings Per Share    
4,087,289
     
4,081,017
 
Additional Common Stock Equivalents (Stock Options and Restricted Stock) Used to Calculate Diluted Earnings Per Share    
10,987
     
852
 
Weighted-Average Common Shares and Common Stock Equivalents Used to Calculate Diluted Earnings Per Share    
4,098,276
     
4,081,869
 
                 
Earnings per share:                
Basic   $
0.42
    $
0.50
 
Diluted    
0.42
     
0.50