Annual report pursuant to Section 13 and 15(d)

LOANS AND ALLOWANCE FOR LOAN LOSSES (Narrative) (Details)

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LOANS AND ALLOWANCE FOR LOAN LOSSES (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Jan. 01, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Nonaccrual loans, interest income $ 0 $ 0 $ 1,800,000  
Period for restructured loan to be considered default 90 days      
Troubled Debt Restructurings (TDRs) $ 17,955,000 20,616,000    
Total Allowance for credit losses 99,787,000 160,540,000 $ 43,194,000 $ 94,838,000
Troubled Debt Restructurings [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Troubled Debt Restructurings (TDRs) 18,000,000.0 20,600,000    
Total Allowance for credit losses 859,000 $ 1,600,000    
Paycheck Protection Program (PPP)        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Loans under modified terms $ 146,100,000