LOANS AND THE ALLOWANCE FOR CREDIT LOSSES - Allowance for loan losses by portfolio (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ 19,843	$ 13,885	$ 17,183	$ 13,732	$ 13,732
Impact of ASU 2016-13 adoption(1)		242,242	228,024	242,242	228,024	240,864	$ 239,822	$ 223,266	$ 219,041
Provision for loan losses		2,209	519
Charge-offs		(13)	(95)	(30)	(192)	(300)
Recoveries		5	48	17	88
Ending balance		22,044	14,357	22,044	14,357	17,183
Provision for loan losses				1,404	729
Individually		2,195		2,195
Collectively		19,849		19,849		17,183
Individually evaluated		10,030		10,030		12,137
Collectively evaluated		2,468,029		2,468,029		2,433,955
Loans held for investment measured at fair value						23,321
Total		2,495,582		2,495,582		2,469,413
Cumulative change in accounting principle
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)	[1]					(5,319)
Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						3,470
Cash, Securities, and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		1,451	1,440	1,198	1,598	1,598
Provision for loan losses		(140)	(246)
Charge-offs				0
Ending balance		1,311	1,194	1,311	1,194	1,198
Provision for loan losses				(80)	(404)
Collectively		1,311		1,311		1,198
Individually evaluated		0		0		4
Collectively evaluated		150,620		150,620		165,555
Total		150,620		150,620		165,559
Cash, Securities, and Other | Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						193
Consumer and Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		196	283	191	266	266
Provision for loan losses		(50)	(16)
Charge-offs		(13)	(95)	(30)	(192)
Recoveries		4	48	15	88
Ending balance		137	220	137	220	191
Provision for loan losses				(145)	58
Collectively		137		137		191
Individually evaluated		0		0		5
Collectively evaluated		21,762		21,762		26,065
Loans held for investment measured at fair value						23,321
Total		39,285		39,285		49,391
Consumer and Other | Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						106
Construction and Development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		6,229	954	2,025	1,092	1,092
Provision for loan losses		1,267	120
Charge-offs				0
Ending balance		7,496	1,074	7,496	1,074	2,025
Provision for loan losses				790	(18)
Collectively		7,496		7,496		2,025
Individually evaluated		0		0		201
Collectively evaluated		310,382		310,382		285,426
Total		310,382		310,382		285,627
Construction and Development | Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						4,681
1-4 Family Residential
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		3,821	3,789	6,309	3,553	3,553
Provision for loan losses		(242)	1,056
Charge-offs				0
Ending balance		3,579	4,845	3,579	4,845	6,309
Provision for loan losses				78	1,292
Collectively		3,579		3,579		6,309
Individually evaluated		0		0
Collectively evaluated		880,600		880,600		899,722
Total		880,600		880,600		899,722
1-4 Family Residential | Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						(2,808)
Non-Owner Occupied CRE
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		2,709	2,867	3,490	2,952	2,952
Provision for loan losses		(214)	368
Charge-offs				0
Ending balance		2,495	3,235	2,495	3,235	3,490
Provision for loan losses				(306)	283
Collectively		2,495		2,495		3,490
Individually evaluated		0		0
Collectively evaluated		558,276		558,276		493,134
Total		558,276		558,276		493,134
Non-Owner Occupied CRE | Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						(689)
Owner Occupied CRE
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		1,272	1,328	1,510	1,292	1,292
Provision for loan losses		(90)	149
Charge-offs				0
Ending balance		1,182	1,477	1,182	1,477	1,510
Provision for loan losses				(224)	185
Collectively		1,182		1,182		1,510
Individually evaluated		0		0		1,165
Collectively evaluated		217,020		217,020		213,024
Total		217,020		217,020		214,189
Owner Occupied CRE | Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						(104)
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		4,165	3,224	2,460	2,979	2,979
Provision for loan losses		1,678	(912)
Charge-offs				0
Ending balance		5,844	$ 2,312	5,844	2,312	2,460
Provision for loan losses				1,291	$ (667)
Individually		2,195		2,195
Collectively		3,649		3,649		2,460
Individually evaluated		10,030		10,030		10,762
Collectively evaluated		329,369		329,369		351,029
Total		339,399		339,399		361,791
Commercial and Industrial | Cumulative change in accounting principle | Accounting Standards Update 2016-13
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Impact of ASU 2016-13 adoption(1)						$ 2,091
Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Recoveries		1		2
Individually evaluated		10,030		10,030
Loan Held for Investment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Loans held for investment measured at fair value		$ 17,523		$ 17,523

[1] Refer to Note 1 - Organization and Summary of Significant Accounting Policies for further information.