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Note 10 - Basic and Diluted Earnings Per Common Share (Tables)
6 Months Ended
Jun. 30, 2019
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three months ended June 30,
   
Six months ended June 30,
 
   
2019
   
2018
   
2019
   
2018
 
Numerator for basic and diluted earnings per common share:
                               
Net income for the period
   
2,616
     
3,608
     
5,415
     
7,352
 
                                 
Denominator for basic and diluted earnings per common share:
                               
Basic weighted average number of common shares outstanding
   
10,657,124
     
10,597,228
     
10,646,045
     
10,592,994
 
Effect of outstanding stock options
   
182,881
     
205,779
     
191,411
     
204,023
 
Diluted weighted average number of shares outstanding
   
10,840,005
     
10,803,007
     
10,837,456
     
10,797,017
 
                                 
Basic earnings per common share
   
0.25
     
0.34
     
0.51
     
0.69
 
                                 
Diluted earnings per common share
   
0.24
     
0.33
     
0.50
     
0.68