LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Loan Portfolio Aging) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 2,631,490	$ 2,651,550
Nonaccrual loans	6,449	6,302
Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	4,523	4,311
Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	2,620,518	2,640,937
30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	2,863	3,520
60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,660	791
90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	180,008	189,208
Nonaccrual loans	319	37
Commercial, Financial and Agricultural [Member] \| Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	362	390
Commercial, Financial and Agricultural [Member] \| Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	179,327	188,781
Commercial, Financial and Agricultural [Member] \| 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	278	340
Commercial, Financial and Agricultural [Member] \| 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	84	50
Commercial, Financial and Agricultural [Member] \| 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Real Estate - Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	174,115	219,994
Nonaccrual loans	0	0
Real Estate - Construction [Member] \| Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Real Estate - Construction [Member] \| Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	174,115	219,994
Real Estate - Construction [Member] \| 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Real Estate - Construction [Member] \| 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Real Estate - Construction [Member] \| 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	802,504	779,095
Nonaccrual loans	1,404	566
Real Estate - Commercial Mortgage [Member] \| Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	765	819
Real Estate - Commercial Mortgage [Member] \| Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	800,335	777,710
Real Estate - Commercial Mortgage [Member] \| 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	765	719
Real Estate - Commercial Mortgage [Member] \| 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	100
Real Estate - Commercial Mortgage [Member] \| 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,047,920	1,042,504
Nonaccrual loans	1,545	3,127
Real Estate - Residential [Member] \| Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,622	683
Real Estate - Residential [Member] \| Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,044,753	1,038,694
Real Estate - Residential [Member] \| 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	303	185
Real Estate - Residential [Member] \| 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,319	498
Real Estate - Residential [Member] \| 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Real Estate - Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	228,201	220,064
Nonaccrual loans	2,591	1,782
Real Estate - Home Equity [Member] \| Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	267	122
Real Estate - Home Equity [Member] \| Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	225,343	218,160
Real Estate - Home Equity [Member] \| 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	248	122
Real Estate - Home Equity [Member] \| 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	19	0
Real Estate - Home Equity [Member] \| 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	0	0
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	198,742	200,685
Nonaccrual loans	590	790
Consumer [Member] \| Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,507	2,297
Consumer [Member] \| Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	196,645	197,598
Consumer [Member] \| 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,269	2,154
Consumer [Member] \| 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	238	143
Consumer [Member] \| 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 0	$ 0