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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 |

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