Loans and Allowance for Credit Losses - Collateral Loan (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	$ 23,675	$ 23,744	$ 21,979	$ 15,588
Commercial, Financial, and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	3,374	3,208	1,921	2,735
Real estate construction − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	672	1,043	631	157
Real estate mortgage − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	5,109	5,264	5,262	3,329
Real estate mortgage − commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	12,857	10,537	9,487	$ 8,000
Collateral dependent impaired loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	2,880	1,483	$ 100
Collateral dependent impaired loans | Commercial, Financial, and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	1,861	1,300
Collateral dependent impaired loans | Real estate construction − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	196	164
Collateral dependent impaired loans | Real estate mortgage − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	24	19
Collateral dependent impaired loans | Real estate mortgage − commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance Allocated	799	0
Real Estate | Collateral dependent impaired loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	4,463	2,847
Real Estate | Collateral dependent impaired loans | Commercial, Financial, and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	0	0
Real Estate | Collateral dependent impaired loans | Real estate construction − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	456	432
Real Estate | Collateral dependent impaired loans | Real estate mortgage − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	45	46
Real Estate | Collateral dependent impaired loans | Real estate mortgage − commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	3,962	2,369
Other | Collateral dependent impaired loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	2,204	2,221
Other | Collateral dependent impaired loans | Commercial, Financial, and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	2,204	2,221
Other | Collateral dependent impaired loans | Real estate construction − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	0	0
Other | Collateral dependent impaired loans | Real estate mortgage − residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	0	0
Other | Collateral dependent impaired loans | Real estate mortgage − commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	$ 0	$ 0