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Note 3 - Per Share Data (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
3 Months Ended
 
   
March 31,
   
March 31,
 
   
2020
   
2019
 
Basic
 
 
 
 
 
 
 
 
Net income
  $
4,166
    $
5,090
 
Less: Dividends and undistributed earnings allocated to participating securities
   
(20
)    
(27
)
Net income attributable to common shares
  $
4,146
    $
5,063
 
Basic weighted-average common shares outstanding
   
13,685,257
     
12,308,862
 
Basic earnings per common share (a)
  $
0.30
    $
0.41
 
Diluted
 
 
 
 
 
 
 
 
Net income attributable to common shares
  $
4,146
    $
5,063
 
Basic weighted-average common shares outstanding
   
13,685,257
     
12,308,862
 
Dilutive effect of potential common stock arising from stock options
   
13,981
     
25,445
 
Diluted weighted-average common shares outstanding
   
13,699,238
     
12,334,307
 
Diluted earnings per common share (a)
  $
0.30
    $
0.41
 
Weighted-average nonvested restricted shares outstanding
   
65,533
     
65,639