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Note 5 - Loans Held for Sale (Tables)
 12 Months Ended
Dec. 31, 2020
Notes Tables  
Servicing Asset at Amortized Cost [Table Text Block]
(In thousands)
  
Year Ended December 31,
  
   
2020
    
2019
    
2018
  
Beginning balance
   $
201
     $
37
     $
-
  
Servicing rights capitalized
    
137
      
180
      
42
  
Servicing rights amortized
    
(22
 )    
(16
 )    
(5
 )
Ending balance
   $
316
     $
201
     $
37