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FAIR VALUE MEASUREMENTS - Additional Information (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Fair Value Measurements Disclosure [Line Items]      
Transfer of equity security to non-marketable equity securities, included in other assets $ 0 $ 0  
Collateral dependent loans, allowance for credit loss 8,800,000    
Provision for fair value measurements included in allowance for loan losses 6,900,000    
Fair Value, Nonrecurring      
Fair Value Measurements Disclosure [Line Items]      
Collateral dependent loans carrying value 29,900,000    
Carrying amount of OREO 600,000    
Valuation allowance of OREO 300,000    
Loss from OREO included in earnings 400,000    
Fair Value, Nonrecurring | SBA-Guaranteed Loan Servicing      
Fair Value Measurements Disclosure [Line Items]      
Servicing asset 1,900,000    
Valuation allowance for impairment of recognized servicing assets, recoveries 300,000    
Valuation allowance for impairment of recognized servicing assets $ 1,300,000   $ 1,600,000