LOANS HELD FOR INVESTMENT, Summary of Loans Held for Investment by Category (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) Category	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	$ 3,014,153	$ 2,748,081
Allowance for credit losses on loans	(42,356)	(39,288)	$ (42,098)	$ (45,553)
Loans held for investment, net	2,971,797	2,708,793
Commercial Real Estate [Member]
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	1,081,056	919,358
Allowance for credit losses on loans	$ (15,808)	(13,029)	(17,245)	(18,962)
Commercial [Member]
Summary of Loans Held for Investment by Category [Abstract]
Number of sub-categories of loans | Category	2
Commercial [Member] | Specialized [Member]
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	$ 372,376	327,513
Allowance for credit losses on loans	(4,020)	(3,425)	(4,363)	(5,760)
Commercial [Member] | General [Member]
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	517,361	484,783
Allowance for credit losses on loans	(6,391)	(9,215)	(8,466)	(9,227)
Consumer [Member] | 1-4 Family Residential [Member]
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	534,731	460,124
Allowance for credit losses on loans	(9,177)	(6,194)	(5,268)	(4,646)
Consumer [Member] | Auto Loans [Member]
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	305,271	321,476
Allowance for credit losses on loans	(3,601)	(3,926)	(3,653)	(4,226)
Consumer [Member] | Other Consumer [Member]
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	74,168	81,308
Allowance for credit losses on loans	(968)	(1,376)	(1,357)	(1,671)
Construction [Member]
Summary of Loans Held for Investment by Category [Abstract]
Loans, gross	129,190	153,519
Allowance for credit losses on loans	$ (2,391)	$ (2,123)	$ (1,746)	$ (1,061)