Quarterly report pursuant to Section 13 or 15(d)

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

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LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Narrative) (Details)
3 Months Ended 6 Months Ended
Mar. 31, 2023
USD ($)
loan
segment
Sep. 30, 2022
segment
Mar. 31, 2022
USD ($)
Jun. 30, 2022
segment
Dec. 31, 2022
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans under modified terms $ 20,541,000        
Troubled Debt Restructurings (TDRs)         $ 14,190,000
Total Allowance for credit losses 116,512,000       110,768,000
Interest income recognized on nonaccrual loans 0   $ 0    
Transfer from LHFI to LHFS $ 7,087,000   $ 0    
Number of loans designated as TLMs currently past due | loan 0        
Number of operating segments | segment 2 2   1  
Troubled Debt Restructurings [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Troubled Debt Restructurings (TDRs)         14,200,000
Total Allowance for credit losses         $ 739,000
Troubled Loan Modifications          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans under modified terms $ 20,500,000        
Total Allowance for credit losses 296,000        
Unfunded commitments on loans modified and designated as TLMs $ 4,400,000