LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Aging analysis of recorded investments by class (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 10,230	$ 15,102
Total current	986,329	877,693
Total Recorded Investment	996,559	892,795
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	6,213	898
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,110
90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	907	14,204
Cash, Securities and Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	525	11,583
Total current	146,176	102,582
Total Recorded Investment	146,701	114,165
Cash, Securities and Other | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	525	331
Cash, Securities and Other | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		11,252
Construction and Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total current	28,120	31,897
Total Recorded Investment	28,120	31,897
1-4 Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,688	1,217
Total current	394,446	349,635
Total Recorded Investment	400,134	350,852
90 days past due and accruing interest		1,200
1-4 Family Residential | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,688
1-4 Family Residential | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		1,217
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		567
Total current	165,179	173,174
Total Recorded Investment	165,179	173,741
Non-Owner Occupied CRE | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		567
Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total current	127,968	108,480
Total Recorded Investment	127,968	108,480
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	4,017	1,735
Total current	124,440	111,925
Total Recorded Investment	128,457	113,660
Commercial and Industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,110
Commercial and Industrial | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 907	$ 1,735