LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Aging analysis of recorded investments by class (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 5,091	$ 6,362
Total current	1,567,924	1,527,823
Total Recorded Investment	1,573,015	1,534,185
90 days past due and accruing interest	0	0
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,898	2,785
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	76
90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,117	3,577
Cash, Securities and Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	12	800
Total current	290,895	356,220
Total Recorded Investment	290,907	357,020
Cash, Securities and Other | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		752
Cash, Securities and Other | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	12	48
Construction and Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total current	127,141	131,111
Total Recorded Investment	127,141	131,111
1-4 Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	76	1,283
Total current	496,025	453,755
Total Recorded Investment	496,101	455,038
1-4 Family Residential | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		1,283
1-4 Family Residential | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	76
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total current	324,493	281,943
Total Recorded Investment	324,493	281,943
Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		479
Total current	178,847	162,563
Total Recorded Investment	178,847	163,042
Owner Occupied CRE | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		479
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,003	3,800
Total current	150,523	142,231
Total Recorded Investment	155,526	146,031
Commercial and Industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,898	271
Commercial and Industrial | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 3,105	$ 3,529