LOANS HELD FOR INVESTMENT, Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
LOANS HELD FOR INVESTMENT [Abstract]
Ratio of allowance for loan losses to loans held for investment		1.73%	2.05%
Allowance for Loan Losses [Roll Forward]
Beginning Balance		$ 45,553	$ 24,197	$ 23,126
Provision for Loan Losses	$ 2,000	(1,918)	25,570	2,799
Charge-offs		(2,402)	(5,559)	(3,273)
Recoveries		865	1,345	1,545
Ending Balance		42,098	45,553	24,197
Commercial Real Estate [Member]
Allowance for Loan Losses [Roll Forward]
Beginning Balance		18,962	5,049	5,579
Provision for Loan Losses		(1,826)	13,618	(961)
Charge-offs		0	(7)	0
Recoveries		109	302	431
Ending Balance		17,245	18,962	5,049
Commercial [Member] | Specialized [Member]
Allowance for Loan Losses [Roll Forward]
Beginning Balance		5,760	2,287	2,516
Provision for Loan Losses		(1,386)	4,514	2
Charge-offs		(172)	(1,162)	(355)
Recoveries		161	121	124
Ending Balance		4,363	5,760	2,287
Commercial [Member] | General [Member]
Allowance for Loan Losses [Roll Forward]
Beginning Balance		9,227	9,609	8,173
Provision for Loan Losses		(302)	1,219	1,209
Charge-offs		(677)	(1,811)	(306)
Recoveries		218	210	533
Ending Balance		8,466	9,227	9,609
Consumer [Member] | 1-4 Family Residential [Member]
Allowance for Loan Losses [Roll Forward]
Beginning Balance		4,646	2,093	2,249
Provision for Loan Losses		666	2,478	219
Charge-offs		(52)	(56)	(436)
Recoveries		8	131	61
Ending Balance		5,268	4,646	2,093
Consumer [Member] | Auto Loans [Member]
Allowance for Loan Losses [Roll Forward]
Beginning Balance		4,226	3,385	2,994
Provision for Loan Losses		(90)	1,814	1,276
Charge-offs		(598)	(1,165)	(1,067)
Recoveries		115	192	182
Ending Balance		3,653	4,226	3,385
Consumer [Member] | Other Consumer [Member]
Allowance for Loan Losses [Roll Forward]
Beginning Balance		1,671	1,341	1,192
Provision for Loan Losses		339	1,300	969
Charge-offs		(903)	(1,358)	(1,034)
Recoveries		250	388	214
Ending Balance		1,357	1,671	1,341
Construction [Member]
Allowance for Loan Losses [Roll Forward]
Beginning Balance		1,061	433	423
Provision for Loan Losses		681	627	85
Charge-offs		0	0	(75)
Recoveries		4	1	0
Ending Balance		$ 1,746	$ 1,061	$ 433