LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	$ 10,881	$ 5,891
Commercial and industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	15	366
Construction and development
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	106	0
Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	6,966	3,700
Farmland
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	133	140
1-4 family residential
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	3,403	1,567
Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	214	66
Agricultural
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	$ 44	$ 52