LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Loan Portfolio by Type of Loan (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Loans held for investment:
Total loans	$ 2,214,997	$ 2,322,576
Deferred loan fees, net	(468)	(775)
Allowance for credit losses	(29,282)	(30,920)	$ (31,759)	$ (31,974)
Total net loans	2,185,247	2,290,881
Commercial and industrial
Loans held for investment:
Total loans	264,058	287,565
Allowance for credit losses	(3,186)	(3,719)	(4,272)	(4,382)
Construction and development
Loans held for investment:
Total loans	231,053	296,639
Allowance for credit losses	(2,906)	(3,623)	(4,419)	(4,889)
Commercial real estate
Loans held for investment:
Total loans	899,120	923,195
Allowance for credit losses	(12,179)	(12,257)	(12,707)	(12,658)
Farmland
Loans held for investment:
Total loans	180,126	186,295
Allowance for credit losses	(2,077)	(2,231)	(2,105)	(2,008)
1-4 family residential
Loans held for investment:
Total loans	526,650	514,603
Allowance for credit losses	(7,401)	(7,470)	(6,699)	(6,617)
Multi-family residential
Loans held for investment:
Total loans	47,507	44,292
Allowance for credit losses	(540)	(521)	(490)	(490)
Consumer
Loans held for investment:
Total loans	53,642	57,059
Allowance for credit losses	(848)	(945)	(919)	(778)
Agricultural
Loans held for investment:
Total loans	12,506	12,685
Allowance for credit losses	(142)	(152)	(145)	(149)
Overdrafts
Loans held for investment:
Total loans	335	243
Allowance for credit losses	$ (3)	$ (2)	$ (3)	$ (3)