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Note 9 - Basic and Diluted Earnings Per Common Share (Tables)
 6 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
For the Three Months Ended
 
 
For the Six Months Ended
 
 
 
June 30,
 
 
June 30,
 
 
 
2017
 
 
2016
 
 
2017
 
 
2016
 
Net income (numerator)
   $
804,000
    $
797,000
    $
1,354,000
    $
1,304,000
 
                                 
Shares (denominator):
                                
Basic weighted average common shares outstanding
    
14,953,217
     
17,211,268
     
15,079,733
     
17,440,299
 
Add: dilutive effect of common stock options
   
52,872
     
-
     
71,299
     
-
 
                                 
Diluted weighted average common shares outstanding
    
15,006,089
     
17,211,268
     
15,151,032
     
17,440,299
 
                                 
Earnings per common share:
                                
Basic
   $
0.05
    $
0.05
    $
0.09
    $
0.07
 
Diluted
   $
0.05
    $
0.05
    $
0.09
    $
0.07