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Note 11 - Financial Instruments with Off-balance Sheet Risk (Tables)
 9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Commitment to Extended Credit [Table Text Block]
   
September 30,
   
December 31,
 
(In thousands)
  
2020
    
2019
  
Commitments to extend credit:
  
 
 
 
  
 
 
 
Unused lines of credit
   $
73,751
     $
71,101
  
Undisbursed construction loans
    
31,947
      
25,367
  
Home equity lines of credit
    
19,825
      
20,032
  
Future loan commitments
    
24,165
      
27,822
  
Financial standby letters of credit
    
669
      
743
  
    $
150,357
     $
145,065