LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Loan Portfolio by Type of Loan (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans held for investment:
Total loans	$ 2,131,137	$ 2,322,576
Deferred loan fees, net	(282)	(775)
Allowance for credit losses	(28,290)	(30,920)	$ (31,974)	$ (30,433)
Total net loans	2,102,565	2,290,881
Commercial and industrial
Loans held for investment:
Total loans	254,702	287,565
Allowance for credit losses	(2,973)	(3,719)	(4,382)	(3,600)
Construction and development
Loans held for investment:
Total loans	218,617	296,639
Allowance for credit losses	(2,738)	(3,623)	(4,889)	(4,221)
Commercial real estate
Loans held for investment:
Total loans	866,684	923,195
Allowance for credit losses	(11,718)	(12,257)	(12,658)	(13,765)
Farmland
Loans held for investment:
Total loans	147,191	186,295
Allowance for credit losses	(1,830)	(2,231)	(2,008)	(1,698)
1-4 family residential
Loans held for investment:
Total loans	529,006	514,603
Allowance for credit losses	(7,656)	(7,470)	(6,617)	(5,818)
Multi-family residential
Loans held for investment:
Total loans	51,538	44,292
Allowance for credit losses	(528)	(521)	(490)	(396)
Consumer
Loans held for investment:
Total loans	51,394	57,059
Allowance for credit losses	(844)	(945)	(778)	(762)
Agricultural
Loans held for investment:
Total loans	11,726	12,685
Allowance for credit losses	0	(152)	(149)	(169)
Overdrafts
Loans held for investment:
Total loans	279	243
Allowance for credit losses	$ (3)	$ (2)	$ (3)	$ (4)