LOANS HELD FOR INVESTMENT, Activity in ACL for Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
LOANS HELD FOR INVESTMENT [Abstract]
Ratio of allowance for credit losses to loans held for investment	1.41%		1.43%
Allowance for Credit Losses [Roll Forward]
Beginning Balance	$ 39,288		$ 42,098	$ 45,553
Provision for credit losses	4,960	[1]	(2,619)	(1,918)
Charge-offs	(2,828)		(2,508)	(2,402)
Recoveries	834		2,317	865
Ending Balance	42,356		39,288	42,098
Provision for credit loss on loans including off-balance sheet credit exposures	4,610		(2,619)	(1,918)
Provision for off-balance sheet credit exposures	(350)
Net charge offs	2,000
Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	102
Ending Balance			102
Commercial Real Estate [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	13,029		17,245	18,962
Provision for credit losses	1,952	[1]	(4,634)	(1,826)
Charge-offs	0		0	0
Recoveries	0		418	109
Ending Balance	15,808		13,029	17,245
Commercial Real Estate [Member] | Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	827
Ending Balance			827
Commercial [Member] | Specialized [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	3,425		4,363	5,760
Provision for credit losses	398	[1]	(1,745)	(1,386)
Charge-offs	(11)		(199)	(172)
Recoveries	175		1,006	161
Ending Balance	4,020		3,425	4,363
Commercial [Member] | Specialized [Member] | Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	33
Ending Balance			33
Commercial [Member] | General [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	9,215		8,466	9,227
Provision for credit losses	42	[1]	627	(302)
Charge-offs	(469)		(328)	(677)
Recoveries	177		450	218
Ending Balance	6,391		9,215	8,466
Commercial [Member] | General [Member] | Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	(2,574)
Ending Balance			(2,574)
Consumer [Member] | 1-4 Family Residential [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	6,194		5,268	4,646
Provision for credit losses	1,278	[1]	1,026	666
Charge-offs	(1)		(140)	(52)
Recoveries	6		40	8
Ending Balance	9,177		6,194	5,268
Consumer [Member] | 1-4 Family Residential [Member] | Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	1,700
Ending Balance			1,700
Consumer [Member] | Auto Loans [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	3,926		3,653	4,226
Provision for credit losses	698	[1]	637	(90)
Charge-offs	(888)		(508)	(598)
Recoveries	197		144	115
Ending Balance	3,601		3,926	3,653
Consumer [Member] | Auto Loans [Member] | Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	(332)
Ending Balance			(332)
Consumer [Member] | Other Consumer [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	1,376		1,357	1,671
Provision for credit losses	688	[1]	932	339
Charge-offs	(1,140)	[2]	(1,167)	(903)
Recoveries	279		254	250
Ending Balance	968		1,376	1,357
Consumer [Member] | Other Consumer [Member] | Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	(235)
Ending Balance			(235)
Construction [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	2,123		1,746	1,061
Provision for credit losses	(96)	[1]	538	681
Charge-offs	(319)		(166)	0
Recoveries	0		5	4
Ending Balance	2,391		2,123	$ 1,746
Construction [Member] | Impact of CECL Adoption [Member]
Allowance for Credit Losses [Roll Forward]
Beginning Balance	$ 683
Ending Balance			$ 683

[1] The $4.6 million provision for credit loss on the consolidated statement of comprehensive income (loss) includes a $5.0 million provision for credit losses on loans and a $(350) thousand provision for off-balance sheet credit exposures for the year ended December 31, 2023.

[2] Includes $574 thousand in charged-off demand deposit overdrafts reported as 2023 originations.