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Note 9 - Basic and Diluted Earnings Per Common Share (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three months ended March 31,
 
   
2019
   
2018
 
Numerator for basic and diluted earnings per common share:
               
Net income for the period
   
2,799
     
3,744
 
                 
Denominator for basic and diluted earnings per common share:
               
Basic weighted average number of common shares outstanding
   
10,634,842
     
10,588,718
 
Effect of outstanding stock options
   
201,055
     
203,895
 
Diluted weighted average number of shares outstanding
   
10,835,897
     
10,792,613
 
                 
Basic earnings per common share
   
0.26
     
0.35
 
                 
Diluted earnings per common share
   
0.26
     
0.35