LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Recorded investment in company's loans (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 892,795	$ 812,697
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	859,018	796,096
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,117	1,272
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	25,660	15,329
Cash, Securities and Other
Financing Receivable, Recorded Investment [Line Items]
Total loans	114,165	131,756
Cash, Securities and Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	102,913	131,756
Cash, Securities and Other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,252
Construction and Development
Financing Receivable, Recorded Investment [Line Items]
Total loans	31,897	24,914
Construction and Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	31,897	23,756
Construction and Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans		1,158
1-4 Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	350,852	282,014
1-4 Family Residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	349,635	279,424
1-4 Family Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,217	2,590
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	173,741	176,987
Non-Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	165,164	174,794
Non-Owner Occupied CRE | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,117
Non-Owner Occupied CRE | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	460	2,193
Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	108,480	92,742
Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	108,480	92,742
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	113,660	104,284
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	100,929	93,624
Commercial and Industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans		114
Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 12,731	$ 10,546