LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Loan Portfolio Aging) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	$ 3,141	$ 4,322
Total Loans	2,213,653	1,931,465
Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	3,554	3,600
Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	2,206,958	1,923,543
30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	2,891	2,790
60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	663	810
90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Commercial, Financial and Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	247,902
Nonaccrual loans	71	90
Total Loans	247,902	223,086
Commercial, Financial and Agricultural [Member] | Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	193	123
Commercial, Financial and Agricultural [Member] | Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	247,638	222,873
Commercial, Financial and Agricultural [Member] | 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	166	100
Commercial, Financial and Agricultural [Member] | 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	27	23
Commercial, Financial and Agricultural [Member] | 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	225,664
Nonaccrual loans	0	0
Total Loans	225,664	174,394
Real Estate - Construction [Member] | Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Construction [Member] | Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	225,664	174,394
Real Estate - Construction [Member] | 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Construction [Member] | 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Construction [Member] | 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	699,093
Nonaccrual loans	430	604
Total Loans	699,093	663,550
Real Estate - Commercial Mortgage [Member] | Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	358	151
Real Estate - Commercial Mortgage [Member] | Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	698,305	662,795
Real Estate - Commercial Mortgage [Member] | 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	358	151
Real Estate - Commercial Mortgage [Member] | 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Commercial Mortgage [Member] | 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	484,975
Nonaccrual loans	1,675	2,097
Total Loans	484,975	360,021
Real Estate - Residential [Member] | Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	236	516
Real Estate - Residential [Member] | Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	483,064	357,408
Real Estate - Residential [Member] | 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	236	365
Real Estate - Residential [Member] | 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	151
Real Estate - Residential [Member] | 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	194,658
Nonaccrual loans	733	1,319
Total Loans	194,658	187,821
Real Estate - Home Equity [Member] | Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	225	210
Real Estate - Home Equity [Member] | Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	193,700	186,292
Real Estate - Home Equity [Member] | 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	225	210
Real Estate - Home Equity [Member] | 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Real Estate - Home Equity [Member] | 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	0	0
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	361,361
Nonaccrual loans	232	212
Total Loans	361,361	322,593
Consumer [Member] | Total Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	2,542	2,600
Consumer [Member] | Total Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	358,587	319,781
Consumer [Member] | 30-59 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	1,906	1,964
Consumer [Member] | 60-89 DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	636	636
Consumer [Member] | 90 +DPD [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable	$ 0	$ 0