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Note 15 - Off Balance Sheet Risks, Commitments, and Contingent Liabilities (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]
   
March 31,
20
20
   
December 31,
201
9
 
   
Fixed
Rate
   
Variable
Rate
   
Fixed
Rate
   
Variable
Rate
 
   
(in thousands)
 
Commitments to make loans
  $
12,403
    $
26,290
    $
11,577
    $
20,415
 
Unused lines of credit
   
8,684
     
96,982
     
7,916
     
111,230
 
Standby letters of credit
   
531
     
1,336
     
531
     
3,164