LOANS AND THE ALLOWANCE FOR CREDIT LOSSES - Summary of loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 2,383,199		$ 2,530,915
Allowance for credit losses	(18,796)	$ (27,319)	(23,931)	$ (23,175)	$ (22,044)	$ (17,183)
Loans accounted for under the fair value option	8,646		13,726
Total, net	2,364,403		2,506,984
Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	(18,796)		(23,931)
Loans accounted for under the fair value option	8,646		13,726
Total, net	2,355,757		2,493,258
Total | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,374,553		2,517,189
Cash, Securities, and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	119,284		139,947
Allowance for credit losses	(401)	(375)	(961)	(1,126)	(1,311)	(1,198)
Cash, Securities, and Other | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	119,284		139,947
Consumer and Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	20,839		40,754
Allowance for credit losses	(137)	(75)	(124)	(114)	(137)	(191)
Loans accounted for under the fair value option	8,900		14,100
Consumer and Other | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	12,193		27,028
Construction and Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	300,270		345,516
Allowance for credit losses	(5,334)	(7,596)	(7,945)	(7,901)	(7,496)	(2,025)
Construction and Development | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	300,270		345,516
1-4 Family Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	922,725		927,965
Allowance for credit losses	(5,325)		(4,370)			(6,309)
1-4 Family Residential | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	922,725		927,965
Non-Owner Occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	605,323		543,692
Allowance for credit losses	(4,342)	(2,203)	(2,325)	(2,255)	(2,495)	(3,490)
Non-Owner Occupied CRE | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	605,323		543,692
Owner Occupied CRE
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	174,928		195,861
Allowance for credit losses	(691)	(973)	(1,034)	(1,010)	(1,182)	(1,510)
Owner Occupied CRE | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	174,928		195,861
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	239,830		337,180
Allowance for credit losses	(2,566)	$ (11,787)	(7,172)	$ (7,149)	$ (5,844)	$ (2,460)
Commercial and Industrial | Amortized Cost
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 239,830		$ 337,180