LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Summary of loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	$ 2,469,038		$ 2,469,413
Allowance for credit losses: loans	(19,843)	$ (20,653)	(17,183)	$ (13,885)	$ (13,732)
Loans, net	2,449,195		2,452,230
Loan measured at fair value	20,807		23,321
Cash, Securities, and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	157,264		165,559
Allowance for credit losses: loans	(1,451)		(1,198)	(1,440)	(1,598)
Consumer and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	42,503		49,391
Allowance for credit losses: loans	(196)		(191)	(283)	(266)
Loan measured at fair value	21,100		23,400
Construction and Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	281,281		285,627
Allowance for credit losses: loans	(6,229)		(2,025)	(954)	(1,092)
1-4 Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	891,639		899,722
Allowance for credit losses: loans	(3,821)		(6,309)	(3,789)	(3,553)
Non-Owner Occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	533,218		493,134
Allowance for credit losses: loans	(2,709)		(3,490)	(2,867)	(2,952)
Owner Occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	221,709		214,189
Allowance for credit losses: loans	(1,272)		(1,510)	(1,328)	(1,292)
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for investment	341,424		361,791
Allowance for credit losses: loans	$ (4,165)		$ (2,460)	$ (3,224)	$ (2,979)