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Note 13 - Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended March 31,
  
(in thousands, except share data)
  
2020
    
2019
  
Net income
   $
2,063
     $
2,635
  
                 
Basic weighted-average number of common shares outstanding    
20,172,498
      
18,720,502
  
Plus: Common share equivalents    
4,067
      
13,150
  
Diluted weighted-average number of common shares outstanding    
20,176,565
      
18,733,652
  
                 
Income per common share:
                
Basic   $
0.10
     $
0.14
  
Diluted   $
0.10
     $
0.14