Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)
$ in Millions
9 Months Ended
Sep. 30, 2023
USD ($)
item
Dec. 31, 2022
USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]    
Number of bank branches | item 109  
Number of ATM's | item 123  
Loans held for investment, accrued interest receivable $ 68.5 $ 58.9
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Other Assets  
HTM securities, Accrued interest receivable $ 6.7 8.6
Debt Securities, Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Other Assets  
AFS securities, accrued interest receivable $ 9.0 $ 14.2
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Other Assets