LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Aging analysis of recorded investments by class (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 20,196	$ 12,329
Current	1,910,938	1,941,839
Total Recorded Investment	1,931,134	1,954,168
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	17,110	7,573
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	860	2,548
90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,226	2,208
Cash, Securities and Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	708	1,207
Current	271,103	294,741
Total Recorded Investment	271,811	295,948
Cash, Securities and Other | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	321	1,199
Cash, Securities and Other | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	351
Cash, Securities and Other | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	36	8
Construction and Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,069	2,758
Current	149,582	175,958
Total Recorded Investment	151,651	178,716
Construction and Development | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,069	2,758
1-4 Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,575	1,449
Current	598,837	579,423
Total Recorded Investment	602,412	580,872
1-4 Family Residential | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,575	1,449
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	509	2,548
Current	455,206	480,074
Total Recorded Investment	455,715	482,622
Non-Owner Occupied CRE | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	509	2,548
Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		1,419
Current	212,401	211,007
Total Recorded Investment	212,401	212,426
Owner Occupied CRE | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		1,419
Commercial. and Industrial.
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	13,335	2,948
Current	223,809	200,636
Total Recorded Investment	$ 237,144	$ 203,584
Number of loans, 90 days delinquent and accruing interest | loan	11	1
Commercial. and Industrial. | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 11,145	$ 748
Commercial. and Industrial. | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 2,190	$ 2,200