LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Composition of the Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Loan Portfolio Composition
Total Loans	$ 2,489,724	$ 2,546,118
Commercial, Financial and Agricultural [Member]
Loan Portfolio Composition
Total Loans	168,144	180,341
Real Estate - Construction [Member]
Loan Portfolio Composition
Total Loans	149,335	146,920
Real Estate - Commercial Mortgage [Member]
Loan Portfolio Composition
Total Loans	736,380	768,731
Real Estate - Residential [Member]
Loan Portfolio Composition
Total Loans	1,004,438	1,025,690
Loans in process	500	5,600
Real Estate - Home Equity [Member]
Loan Portfolio Composition
Total Loans	246,120	240,897
Consumer [Member]
Loan Portfolio Composition
Total Loans	185,307	183,539
Overdraft Balances	$ 1,300	$ 1,200

Loan Portfolio Composition [Abstract]

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- Definition

Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable.

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- Definition

Amount of undisbursed portion of financing receivable balance. Excludes financing receivable covered under loss sharing agreement.

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- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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