LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Activity in Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 29,251	$ 29,941	$ 29,941
Provision for Credit Losses	1,083	882
Charge-Offs	(1,611)	(2,563)
Recoveries	1,011	1,069
Net (Charge-Offs) Recoveries	(600)	(1,494)
Ending Balance	29,734	29,329	29,251
Commercial, Financial and Agricultural [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,514	1,482	1,482
Provision for Credit Losses	47	284
Charge-Offs	(168)	(282)	(1,512)
Recoveries	75	41
Net (Charge-Offs) Recoveries	(93)	(241)
Ending Balance	1,468	1,525	1,514
Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,384	2,502	2,502
Provision for Credit Losses	(151)	(633)
Charge-Offs	0	0	(47)
Recoveries	0	0
Net (Charge-Offs) Recoveries	0	0
Ending Balance	2,233	1,869	2,384
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	5,867	5,782	5,782
Provision for Credit Losses	191	(39)
Charge-Offs	0	0	(3)
Recoveries	3	204
Net (Charge-Offs) Recoveries	3	204
Ending Balance	6,061	5,947	5,867
Real Estate - Residential [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	14,568	15,056	15,056
Provision for Credit Losses	206	(248)
Charge-Offs	(8)	(17)	(61)
Recoveries	119	37
Net (Charge-Offs) Recoveries	111	20
Ending Balance	14,885	14,828	14,568
Real Estate - Home Equity [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,952	1,818	1,818
Provision for Credit Losses	68	130
Charge-Offs	0	(76)	(132)
Recoveries	9	24
Net (Charge-Offs) Recoveries	9	(52)
Ending Balance	2,029	1,896	1,952
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,966	3,301	3,301
Provision for Credit Losses	722	1,388
Charge-Offs	(1,435)	(2,188)	(7,627)
Recoveries	805	763
Net (Charge-Offs) Recoveries	(630)	(1,425)
Ending Balance	$ 3,058	$ 3,264	$ 2,966