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MORTGAGE SERVICING RIGHTS (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
OTHER INTANGIBLE ASSETS          
Income generated as a result of new mortgage servicing rights reported as gains on sale of loans     $ 1,339 $ 3,654  
Mortgage Servicing Rights          
OTHER INTANGIBLE ASSETS          
Income generated as a result of new mortgage servicing rights reported as gains on sale of loans $ 200 $ 300 500 700  
Changes in other intangible assets          
Balance, beginning of period     9,738 11,865  
Additions     494 717  
Amortization (300) (900) (863) (2,082)  
Balance, end of period 9,369 10,500 9,369 10,500  
Fair market value and key assumptions used in determining the fair market value          
Fair market value, beginning of period     10,504 12,003  
Fair market value, end of period 12,047 10,755 12,047 10,755  
Gross carrying value, accumulated amortization and net carrying value related to intangible assets          
Gross Carrying Value 72,744   72,744   $ 72,250
Accumulated Amortization (63,375)   (63,375)   (62,512)
Other intangible assets 9,369 10,500 9,369 10,500 9,738
Estimated Amortization Expense          
2022 (remainder) 731   731    
2021 1,301   1,301    
2022 1,063   1,063    
2023 868   868    
2024 709   709    
2025 579   579    
Thereafter 4,118   4,118    
Other intangible assets $ 9,369 $ 10,500 $ 9,369 $ 10,500 $ 9,738
Measurement Input, Discount Rate | Mortgage Servicing Rights          
Fair market value and key assumptions used in determining the fair market value          
Weighted average prepayment speed assumption 0.095 0.096 0.095 0.096  
Measurement Input, Constant Prepayment Rate | Mortgage Servicing Rights          
Fair market value and key assumptions used in determining the fair market value          
Weighted average prepayment speed assumption 0.075 0.180 0.075 0.180