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FAIR VALUE OF ASSETS AND LIABILITIES (Narrative) (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Loans, weighted average discount rate, percent 6.69% 7.07%    
Time deposits, weighted average discount rate, percent 4.44% 4.50%    
Long -term debt, weighted average discount rate, percent 7.13% 6.68%    
Weighted average | Weighted-average discount rate | Interest rate swap agreements | Derivatives Not in Cash Flow Hedging Relationship | Derivative Financial Instruments Designated as Hedging Instruments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Derivative, measurement input 0.0370 0.0402    
Mortgage revenue bonds        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Aggregate fair value $ 6,844 $ 6,847 $ 16,402 $ 13,590
Mortgage revenue bonds | Weighted average | Weighted-average discount rate        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Weighted average prepayment speed assumption 0.0603 0.0622    
Mortgage revenue bonds | States and political subdivisions        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Aggregate fair value $ 6,162 $ 6,165 6,323 6,436
Mortgage revenue bonds | Residential - Non-government agencies        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Aggregate fair value $ 682 $ 682 $ 704 $ 714