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Note 4 - Mortgage Servicing Rights (Tables)
3 Months Ended
Mar. 31, 2026
Notes Tables  
Activities in Mortgage Servicing Rights [Table Text Block]
  As of or For the 
  

Three Months Ended

 
  

March 31,

 
  

2026

  

2025

 
  

(In Thousands)

 

Mortgage servicing rights:

        

Beginning balance

 $15,043  $15,376 

Mortgage servicing rights capitalized

  486   271 

Amortization of mortgage servicing rights

  (620)  (365)

Mortgage servicing rights, net

 $14,909  $15,282 
Mortgage Servicing Rights [Member]  
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
  

March 31,

  

December 31,

 
  

2026

  

2025

 

Key assumptions:

        

Discount rate

  12%  12%

Prepayment speed range

  94 - 279%  90 - 211%

Weighted average prepayment speed

  127%  119%