LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Recorded investment in company's loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 924,356	$ 892,795
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	894,897	859,018
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,171	8,117
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	28,288	25,660
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Cash, Securities and Other
Financing Receivable, Recorded Investment [Line Items]
Total loans	146,622	114,165
Cash, Securities and Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	141,358	102,913
Cash, Securities and Other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,264	11,252
Construction and Development
Financing Receivable, Recorded Investment [Line Items]
Total loans	42,059	31,897
Construction and Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	42,059	31,897
1-4 Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	366,238	350,852
1-4 Family Residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	359,030	349,635
1-4 Family Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,208	1,217
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	138,753	173,741
Non-Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	137,582	165,164
Non-Owner Occupied CRE | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,171	8,117
Non-Owner Occupied CRE | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans		460
Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	119,497	108,480
Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	119,497	108,480
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	111,187	113,660
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	95,371	100,929
Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 15,816	$ 12,731