LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Aging analysis of recorded investments by class (Details)	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 12,329,000	$ 6,362,000
Current	1,941,839,000	1,527,823,000
Total Recorded Investment	1,954,168,000	1,534,185,000
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	7,573,000	2,785,000
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,548,000
90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,208,000	3,577,000
Cash, Securities and Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,207,000	800,000
Current	294,741,000	356,220,000
Total Recorded Investment	295,948,000	357,020,000
Cash, Securities and Other | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,199,000	752,000
Cash, Securities and Other | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	8,000	48,000
Construction and Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,758,000
Current	175,958,000	131,111,000
Total Recorded Investment	178,716,000	131,111,000
Construction and Development | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,758,000
1-4 Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,449,000	1,283,000
Current	579,423,000	453,755,000
Total Recorded Investment	580,872,000	455,038,000
1-4 Family Residential | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,449,000	1,283,000
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,548,000
Current	480,074,000	281,943,000
Total Recorded Investment	482,622,000	281,943,000
Non-Owner Occupied CRE | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,548,000
Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,419,000	479,000
Current	211,007,000	162,563,000
Total Recorded Investment	212,426,000	163,042,000
Owner Occupied CRE | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,419,000	479,000
Commercial. and Industrial.
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,948,000	3,800,000
Current	200,636,000	142,231,000
Total Recorded Investment	$ 203,584,000	146,031,000
Number of loans, 90 days delinquent and accruing interest	1
Commercial. and Industrial. | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 748,000	271,000
Commercial. and Industrial. | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 2,200,000	$ 3,529,000