LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Collateral-Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	$ 52,078	$ 123,082
Allowance for Credit Losses	7,897	24,656
Commercial, financial and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	2,613	5,490
Allowance for Credit Losses	723	2,252
Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	2,989	3,523
Allowance for Credit Losses	30	0
Real estate – construction and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	1,432	4,173
Allowance for Credit Losses	45	512
Real estate – commercial and farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	33,332	100,180
Allowance for Credit Losses	6,646	21,001
Real estate – residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	11,712	9,716
Allowance for Credit Losses	$ 453	$ 891