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Note 9 - Basic and Diluted Earnings Per Common Share (Tables)
 3 Months Ended
Mar. 31, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
For the Three Months Ended
 
 
 
March 31,
 
 
 
2017
 
 
2016
 
Net income (numerator)
   $
550,000
    $
507,000
 
                 
Shares (denominator):
                
Basic weighted average common shares outstanding
    
15,207,659
     
17,669,331
 
Add: dilutive effect of common stock options
   
94,142
     
-
 
                 
Diluted weighted average common shares outstanding
    
15,301,801
     
17,669,331
 
                 
Earnings per common share:
                
Basic
   $
0.04
    $
0.03
 
Diluted
   $
0.04
    $
0.03