LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Recorded Investment in Nonaccrual and Past Due Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual With No ACL	$ 4,498	$ 4,448
Nonaccrual, with ACL	5,513	4,147
90+ Days Still Accruing	0	0
Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual With No ACL	1,016	1,038
Nonaccrual, with ACL	111	240
90+ Days Still Accruing	0	0
Real Estate - Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual With No ACL	379	0
Nonaccrual, with ACL	0	0
90+ Days Still Accruing	0	0
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual With No ACL	1,038	753
Nonaccrual, with ACL	2,022	1,807
90+ Days Still Accruing	0	0
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual With No ACL	1,399	1,275
Nonaccrual, with ACL	2,031	868
90+ Days Still Accruing	0	0
Real Estate - Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual With No ACL	666	1,382
Nonaccrual, with ACL	524	387
90+ Days Still Accruing	0	0
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual With No ACL	0	0
Nonaccrual, with ACL	825	845
90+ Days Still Accruing	$ 0	$ 0

Amount of financing receivable on nonaccrual status with allowance for credit loss.

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- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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- Definition

Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

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