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Note 2 - Earnings Per Common Share (Tables)
 3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
(Dollar amounts in thousands, except for per share amounts)
  
For the three months ended March
31,
  
   
2021
    
2020
  
Net income
   $
2,174
     $
1,190
  
Less: Preferred stock dividends
    
—
      
—
  
Net income available to common stockholders
   $
2,174
     $
1,190
  
Average common shares outstanding
    
2,721,212
      
2,708,712
  
Add: Dilutive effects of restricted stock awards
    
18,977
      
14,898
  
Average shares and dilutive potential common shares
    
2,740,189
      
2,723,610
  
Basic earnings per common share
   $
0.80
     $
0.44
  
Diluted earnings per common share
   $
0.79
     $
0.44