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MORTGAGE OPERATIONS (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
MORTGAGE OPERATIONS [Abstract]      
Real estate mortgage loans serviced $ 191,063   $ 194,818
Key assumptions used in measuring the fair value of mortgage servicing rights [Abstract]      
Constant prepayment rate 7.45%   7.55%
Discount rate 9.50%   9.50%
Weighted average life 7 years 2 months 23 days   7 years 2 months 12 days
Mortgage servicing rights [Roll Forward]      
Beginning balance $ 1,650    
Additions 6    
Reductions (62)    
Ending balance 1,594   $ 1,650
Valuation allowance [Roll Forward]      
Beginning balance 0    
Additions 0    
Reductions 0    
Ending balance 0   0
Mortgage servicing rights, net of valuation allowance [Roll Forward]      
Beginning balance 1,650    
Additions 6    
Reductions (62)    
Ending balance 1,594    
Fair value of mortgage servicing rights assets 2,127   $ 2,101
Contractually specified servicing fees $ 121 $ 130