LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Recorded investment in company's loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	$ 1,954,168	$ 1,534,185
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	1,938,462	1,517,908
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	8,875	6,316
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	6,831	9,961
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	295,948	357,020
Cash, Securities and Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	295,940	356,970
Cash, Securities and Other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	8	50
Construction and Development
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	178,716	131,111
Construction and Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	176,194	131,111
Construction and Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	2,522
1-4 Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	580,872	455,038
1-4 Family Residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	580,797	451,918
1-4 Family Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	75	3,120
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	482,622	281,943
Non-Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	476,670	275,627
Non-Owner Occupied CRE | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	5,952	6,316
Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	212,426	163,042
Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	210,493	161,850
Owner Occupied CRE | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	1,933	1,192
Commercial. and Industrial.
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	203,584	146,031
Commercial. and Industrial. | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	198,368	140,432
Commercial. and Industrial. | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	401
Commercial. and Industrial. | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans held for investment	$ 4,815	$ 5,599