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Note 16 - Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2018
Notes Tables  
Commitments to Extend Credit [Table Text Block]
(In thousands)   2018   2017
         
Loan commitments:                
Fixed rate   $
4,946
     $
933
  
Adjustable rate    
930
      
8,245
  
                 
Standby letters of credit    
1,295
      
1,246
  
Unused lines of credit on credit cards    
6,641
      
5,660
  
Undisbursed commercial and personal lines of credit    
26,862
      
32,302
  
Undisbursed portion of construction loans in process    
26,675
      
25,020
  
Undisbursed portion of home equity lines of credit    
47,079
      
44,494
  
                 
    $
114,428
     $
117,900