LOANS HELD FOR INVESTMENT - Loans Held for Investment by Category (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	$ 3,144,502	$ 3,055,054
Allowance for credit losses on loans	(45,131)	(43,237)	$ (42,356)	$ (39,288)
Loans held for investment, net	3,099,371	3,011,817
Commercial Real Estate [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	1,064,625	1,119,063
Allowance for credit losses on loans	(15,214)	(15,973)	(15,808)	(13,029)
Commercial [Member] | Specialized [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	409,351	388,955
Allowance for credit losses on loans	(5,231)	(4,640)	(4,020)	(3,425)
Commercial [Member] | General [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	659,323	557,371
Allowance for credit losses on loans	(7,448)	(6,874)	(6,391)	(9,215)
Consumer [Member] | 1-4 Family Residential [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	589,851	566,400
Allowance for credit losses on loans	(11,103)	(9,677)	(9,177)	(6,194)
Consumer [Member] | Auto Loans [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	259,157	254,474
Allowance for credit losses on loans	(3,033)	(3,015)	(3,601)	(3,926)
Consumer [Member] | Other Consumer [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	62,092	64,936
Allowance for credit losses on loans	(1,150)	(1,115)	(968)	(1,376)
Construction [Member]
LOANS HELD FOR INVESTMENT [Abstract]
Loans, gross	100,103	103,855
Allowance for credit losses on loans	$ (1,952)	$ (1,943)	$ (2,391)	$ (2,123)