v3.22.1
FAIR VALUE MEASUREMENTS - Valuation assumptions (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Provision for loan losses $ (792) $ 360  
Fair Value Measurement Level 3      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Reserves related to impaired loans 0   $ 0
Impaired loans $ 5,600   $ 2,800
Fair Value Measurement Level 3 | Prepayment Rate | Minimum | Available for Sale      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 30   30
Fair Value Measurement Level 3 | Prepayment Rate | Minimum | Mortgage Servicing Rights.      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 20    
Fair Value Measurement Level 3 | Prepayment Rate | Maximum | Available for Sale      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 35   35
Fair Value Measurement Level 3 | Prepayment Rate | Maximum | Mortgage Servicing Rights.      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 30    
Fair Value Measurement Level 3 | Discount Rate | Minimum | Available for Sale      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 7.11   7.11
Fair Value Measurement Level 3 | Discount Rate | Minimum | Mortgage Servicing Rights.      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 1.43    
Fair Value Measurement Level 3 | Discount Rate | Maximum | Available for Sale      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 12.20   12.20
Fair Value Measurement Level 3 | Discount Rate | Maximum | Mortgage Servicing Rights.      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Alternative investment measurement input 10