LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	$ 12,705	$ 11,262
Commercial and industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	27	46
Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	10,604	6,860
Farmland
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	115	182
1-4 family residential
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	1,667	3,853
Consumer and Overdrafts
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	212	279
Agricultural
Financing Receivable Recorded Investment Past Due [Line Items]
Total loans	$ 80	$ 42