Loans and Allowance for Credit Losses - Schedule of Non-accrual Loans (Details) - Non-performing TDRs - 90 days past due - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual with no Allowance	$ 0	$ 0
Non-accrual with Allowance	2,444	2,537
Total Non-accrual	2,444	2,537
90 Days Past Due And Still Accruing	17	210
Total Non-performing Loans	2,461	2,747
Commercial, Financial, and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual with no Allowance	0	0
Non-accrual with Allowance	923	923
Total Non-accrual	923	923
90 Days Past Due And Still Accruing	0	0
Total Non-performing Loans	923	923
Real estate construction − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual with no Allowance	0	0
Non-accrual with Allowance	454	454
Total Non-accrual	454	454
90 Days Past Due And Still Accruing	0	0
Total Non-performing Loans	454	454
Real estate construction − commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual with no Allowance	0	0
Non-accrual with Allowance	44	49
Total Non-accrual	44	49
90 Days Past Due And Still Accruing	0	0
Total Non-performing Loans	44	49
Real estate mortgage − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual with no Allowance	0	0
Non-accrual with Allowance	859	963
Total Non-accrual	859	963
90 Days Past Due And Still Accruing	0	207
Total Non-performing Loans	859	1,170
Real estate mortgage − commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual with no Allowance	0	0
Non-accrual with Allowance	136	138
Total Non-accrual	136	138
90 Days Past Due And Still Accruing	0	0
Total Non-performing Loans	136	138
Installment and other consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual with no Allowance	0	0
Non-accrual with Allowance	28	10
Total Non-accrual	28	10
90 Days Past Due And Still Accruing	17	3
Total Non-performing Loans	$ 45	$ 13