LOANS HELD FOR INVESTMENT, Activity in ACL for Loans (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended		12 Months Ended
		Jun. 30, 2025	Jun. 30, 2024		Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
LOANS HELD FOR INVESTMENT [Abstract]
Ratio of ACL for loans to loans held for investment		1.45%			1.45%		1.42%
Allowance for Credit Losses [Roll Forward]
Beginning Balance		$ 42,968	$ 42,174		$ 43,237	$ 42,356	$ 42,356
Provision for credit losses	[1]	2,500	1,775	[2]	2,750	2,540
Charge-offs		(934)	(860)		(1,624)	(1,999)
Recoveries		476	84		647	276
Ending Balance		45,010	43,173		45,010	43,173	43,237
Provision for credit losses		2,500	1,775		2,920	2,605
Provision for off-balance sheet credit exposures		0	0		170	65
Commercial Real Estate [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance		15,787	15,784		15,973	15,808	15,808
Provision for credit losses	[1]	(81)	(192)	[2]	(267)	(130)
Charge-offs		0	0		0	(86)	(87)
Recoveries		0	1		0	1
Ending Balance		15,706	15,593		15,706	15,593	15,973
Commercial [Member] | Specialized [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance		4,523	3,848		4,640	4,020	4,020
Provision for credit losses	[1]	311	877	[2]	160	672
Charge-offs		0	0		0	0	0
Recoveries		47	11		81	44
Ending Balance		4,881	4,736		4,881	4,736	4,640
Commercial [Member] | General [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance		6,403	6,708		6,874	6,391	6,391
Provision for credit losses	[1]	856	461	[2]	439	1,120
Charge-offs		(284)	(344)		(358)	(720)	(1,082)
Recoveries		253	16		273	50
Ending Balance		7,228	6,841		7,228	6,841	6,874
Consumer [Member] | 1-4 Family Residential [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance		10,079	9,280		9,677	9,177	9,177
Provision for credit losses	[1]	1,030	420	[2]	1,425	694
Charge-offs		0	0		0	(172)	(175)
Recoveries		41	2		48	3
Ending Balance		11,150	9,702		11,150	9,702	9,677
Consumer [Member] | Auto Loans [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance		3,096	3,415		3,015	3,601	3,601
Provision for credit losses	[1]	252	125	[2]	583	99
Charge-offs		(392)	(265)		(694)	(490)	(1,186)
Recoveries		39	12		91	77
Ending Balance		2,995	3,287		2,995	3,287	3,015
Consumer [Member] | Other Consumer [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance		1,107	983		1,115	968	968
Provision for credit losses	[1]	157	200	[2]	410	436
Charge-offs		(258)	(251)		(572)	(531)	(1,257)
Recoveries		96	42		149	101
Ending Balance		1,102	974		1,102	974	1,115
Construction [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance		1,973	2,156		1,943	2,391	2,391
Provision for credit losses	[1]	(25)	(116)	[2]	0	(351)
Charge-offs		0	0		0	0	(315)
Recoveries		0	0		5	0
Ending Balance		$ 1,948	$ 2,040		$ 1,948	$ 2,040	$ 1,943

[1] Includes $180 thousand in charged-off demand deposit overdrafts reported as 2025 originations.

[2] Includes $457 thousand in charged-off demand deposit overdrafts reported as 2024 originations.