LOANS AND ALLOWANCE FOR CREDIT LOSSES - Non-performing assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Total non-accrual loans	$ 4,616	$ 5,051
Loans past-due 90 days or more and still accruing interest	1,065	308
Total non-performing assets	5,681	5,359
Real Estate
Total non-accrual loans	4,005	4,387
Loans past-due 90 days or more and still accruing interest	1,065	308
Agricultural
Loans past-due 90 days or more and still accruing interest	0	0
Commercial and Industrial
Total non-accrual loans	611	664
Loans past-due 90 days or more and still accruing interest	0	0
Consumer
Loans past-due 90 days or more and still accruing interest	0	0
State and Political Subdivisions
Loans past-due 90 days or more and still accruing interest	$ 0	$ 0