LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Information Pertaining to Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	$ 31,814	$ 41,773
Allowance for Credit Losses	5,158	9,801
Commercial, financial and agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	7,398	7,128
Allowance for Credit Losses	2,160	6,294
Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	0	3,233
Allowance for Credit Losses	0	0
Real estate – construction and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	559	780
Allowance for Credit Losses	122	13
Real estate – commercial and farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	7,894	15,168
Allowance for Credit Losses	876	1,428
Real estate – residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	15,963	15,464
Allowance for Credit Losses	$ 2,000	$ 2,066