LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Recorded investment in company's loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 841,489	$ 812,697
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	818,327	796,096
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,179	1,272
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,983	15,329
Cash, Securities and Other
Financing Receivable, Recorded Investment [Line Items]
Total loans	135,393	131,756
Cash, Securities and Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	135,393	131,756
Construction and Development
Financing Receivable, Recorded Investment [Line Items]
Total loans	35,760	24,914
Construction and Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	32,796	23,756
Construction and Development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,964	1,158
1-4 Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	307,794	282,014
1-4 Family Residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	306,384	279,424
1-4 Family Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,410	2,590
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	164,438	176,987
Non-Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	154,030	174,794
Non-Owner Occupied CRE | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,215
Non-Owner Occupied CRE | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,193	2,193
Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	98,393	92,742
Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	98,393	92,742
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	99,711	104,284
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	91,331	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	$ 8,380	$ 10,546