LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Recorded investment in company's loans (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	$ 2,354,898	$ 1,954,168
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	2,316,805	1,938,462
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	11,809	8,875
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	3,636	6,831
Not Rated
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	22,648
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	0	0
Cash, Securities and Other
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	154,748	261,190
Cash, Securities and Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	154,744	261,184
Cash, Securities and Other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	4	6
Consumer and Other
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	50,429	34,758
Consumer and Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	27,781	34,756
Consumer and Other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment		2
Consumer and Other | Not Rated
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	22,648
Construction and Development
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	228,060	178,716
Construction and Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	227,859	176,194
Construction and Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment		2,522
Construction and Development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	201
1-4 Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	822,796	580,872
1-4 Family Residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	822,728	580,797
1-4 Family Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	68	75
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	527,836	482,622
Non-Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	527,794	476,670
Non-Owner Occupied CRE | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	42	5,952
Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	220,075	212,426
Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	218,896	210,493
Owner Occupied CRE | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	1,179	1,933
Commercial. and Industrial.
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	350,954	203,584
Commercial. and Industrial. | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	337,003	198,368
Commercial. and Industrial. | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	11,767	401
Commercial. and Industrial. | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	$ 2,184	$ 4,815