LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Recorded investment in company's loans (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,042,478	$ 996,559
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,020,075	973,472
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,145	1,158
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	21,258	21,929
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Cash, Securities and Other
Financing Receivable, Recorded Investment [Line Items]
Total loans	147,157	146,701
Cash, Securities and Other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	145,444	143,898
Cash, Securities and Other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,713	2,803
Construction and Development
Financing Receivable, Recorded Investment [Line Items]
Total loans	25,461	28,120
Construction and Development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	25,461	28,120
1-4 Family Residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	412,306	400,134
1-4 Family Residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	406,450	395,224
1-4 Family Residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,856	4,910
Non-Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	192,350	165,179
Non-Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	191,205	164,021
Non-Owner Occupied CRE | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,145	1,158
Owner Occupied CRE
Financing Receivable, Recorded Investment [Line Items]
Total loans	121,138	127,968
Owner Occupied CRE | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	121,138	127,968
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	144,066	128,457
Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	130,377	114,241
Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 13,689	$ 14,216