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Note 11 - Earnings Per 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,
 
(in thousands, except share data)
 
2019
   
2018
 
Net income
  $
2,635
    $
2,019
 
                 
Basic weighted-average number of common shares outstanding
   
18,720,502
     
16,763,401
 
Plus: Common share equivalents
   
13,150
     
25,935
 
Diluted weighted-average number of common shares outstanding
   
18,733,652
     
16,789,336
 
                 
Income per common share:
               
Basic
  $
0.14
    $
0.12
 
Diluted
  $
0.14
    $
0.12