LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Aging analysis of recorded investments by class (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 10,010	$ 10,230
Total current	1,032,468	986,329
Total Recorded Investment	1,042,478	996,559
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	4,146	6,213
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	233	3,110
90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,631	907
Cash, Securities and Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,524	525
Total current	145,633	146,176
Total Recorded Investment	147,157	146,701
Cash, Securities and Other | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		525
Cash, Securities and Other | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	31
Cash, Securities and Other | 90 or More Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,493
Construction and Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total current	25,461	28,120
Total Recorded Investment	25,461	28,120
1-4 Family Residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,364	5,688
Total current	408,942	394,446
Total Recorded Investment	412,306	400,134
1-4 Family Residential | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	3,162	5,688
1-4 Family Residential | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	202
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total current	192,350	165,179
Total Recorded Investment	192,350	165,179
Owner Occupied CRE
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total current	121,138	127,968
Total Recorded Investment	121,138	127,968
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,122	4,017
Total current	138,944	124,440
Total Recorded Investment	144,066	128,457
Commercial and Industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	984
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	$ 4,138	$ 907