LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loans Modified of Amortized Cost Basis (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 10,535
Percentage of Total Class of Financial Receivable	0.10%
Payment Deferral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 2,213
Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	7,142
Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	832
Combination of Term Extension and Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	348
Commercial, financial and agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 3,682
Percentage of Total Class of Financial Receivable	0.10%
Commercial, financial and agricultural | Payment Deferral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 1,180
Commercial, financial and agricultural | Payment Deferral | Financial Asset, 90 Days Or Less Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Financial effect, percent reduction of payments	32.00%
Commercial, financial and agricultural | Payment Deferral | Loans 90 or More Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Financial effect, percent reduction of payments	73.00%
Commercial, financial and agricultural | Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 2,502
Financing receivable, modified, weighted average term increase from modification	10 months
Commercial, financial and agricultural | Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 0
Commercial, financial and agricultural | Combination of Term Extension and Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0
Real estate – construction and development
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 278
Percentage of Total Class of Financial Receivable	0.00%
Real estate – construction and development | Payment Deferral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 0
Real estate – construction and development | Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 278
Financing receivable, modified, weighted average term increase from modification	11 months
Real estate – construction and development | Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 0
Real estate – construction and development | Combination of Term Extension and Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	0
Real estate – commercial and farmland
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 2,029
Percentage of Total Class of Financial Receivable	0.00%
Real estate – commercial and farmland | Payment Deferral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 0
Real estate – commercial and farmland | Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 1,197
Financing receivable, modified, weighted average term increase from modification	12 months
Real estate – commercial and farmland | Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 832
Financing receivable, modified, weighted average interest rate decrease from modification	4.75%
Real estate – commercial and farmland | Combination of Term Extension and Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 0
Real estate – residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 4,546
Percentage of Total Class of Financial Receivable	0.10%
Real estate – residential | Payment Deferral
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 1,033
Real estate – residential | Term Extension
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 3,165
Financing receivable, modified, weighted average term increase from modification	92 months
Real estate – residential | Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 0
Real estate – residential | Combination of Term Extension and Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 348
Financing receivable, modified, weighted average term increase from modification	58 months
Financing receivable, modified, weighted average interest rate decrease from modification	1.375%