Loans and Allowance for Credit Losses - Loans Modified During the Period (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) Rate yr	Mar. 31, 2023 USD ($) Rate yr
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 1,715	$ 25
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.02%	0.00%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	1.80%	2.25%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	2 years 2 months 12 days	0 years
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.6	0.0
Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 199	$ 25
Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	971	0
Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0	0
Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	427	0
Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	103
Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	15
Residential real estate [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 287	$ 25
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.01%	0.00%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	0.00%	2.25%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	6 years 1 month 6 days	0 years
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.8	0.0
Residential real estate [Member] | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0	$ 25
Residential real estate [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	90	0
Residential real estate [Member] | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0	0
Residential real estate [Member] | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	197	0
Residential real estate [Member] | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Residential real estate [Member] | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Residential real estate [Member] | Senior Lien
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 257	$ 25
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.01%	0.00%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	0.00%	2.25%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	5 years 7 months 6 days	0 years
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.9	0.0
Residential real estate [Member] | Senior Lien | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0	$ 25
Residential real estate [Member] | Senior Lien | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	90	0
Residential real estate [Member] | Senior Lien | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0	0
Residential real estate [Member] | Senior Lien | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	167	$ 0
Residential real estate [Member] | Senior Lien | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Residential real estate [Member] | Senior Lien | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Residential real estate [Member] | Junior Lien
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 30
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.00%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	0.00%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	10 years 3 months 18 days
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.3
Residential real estate [Member] | Junior Lien | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0
Residential real estate [Member] | Junior Lien | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Residential real estate [Member] | Junior Lien | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Residential real estate [Member] | Junior Lien | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	30
Residential real estate [Member] | Junior Lien | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Residential real estate [Member] | Junior Lien | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 1,239
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.08%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	1.77%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	1 year 3 months 18 days
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.4
Commercial, financial, agricultural and other [Member] | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 199
Commercial, financial, agricultural and other [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	869
Commercial, financial, agricultural and other [Member] | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	68
Commercial, financial, agricultural and other [Member] | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	103
Commercial, financial, agricultural and other [Member] | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Time and Demand Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 1,068
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.09%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	1.50%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	1 year 3 months 18 days
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.0
Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 199
Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	869
Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Time and Demand Loans | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Equipment Finance
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 171
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.06%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	2.30%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	6 months
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.4
Commercial, financial, agricultural and other [Member] | Equipment Finance | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0
Commercial, financial, agricultural and other [Member] | Equipment Finance | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Equipment Finance | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial, financial, agricultural and other [Member] | Equipment Finance | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	68
Commercial, financial, agricultural and other [Member] | Equipment Finance | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	103
Commercial, financial, agricultural and other [Member] | Equipment Finance | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 152
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.00%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	0.00%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	6 months
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.5
Commercial Real Estate [Member] | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0
Commercial Real Estate [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member] | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member] | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	152
Commercial Real Estate [Member] | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member] | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 152
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.02%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	0.00%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	6 months
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.5
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	152
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Loans to individuals [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 37
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.00%
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	2.39%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	2 years 7 months 6 days
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.4
Loans to individuals [Member] | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0
Loans to individuals [Member] | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	12
Loans to individuals [Member] | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Loans to individuals [Member] | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	10
Loans to individuals [Member] | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Loans to individuals [Member] | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	15
Loans to individuals [Member] | Automobiles
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 37
Financing Receivable, Modified in Period, to Total Financing Receivables, Percentage | Rate	0.00%
Loans to individuals [Member] | Automobiles | Contractual Interest Rate Reduction [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 0
Loans to individuals [Member] | Automobiles | Extended Maturity [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	12
Loans to individuals [Member] | Automobiles | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Loans to individuals [Member] | Automobiles | Extended Maturity and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	10
Loans to individuals [Member] | Automobiles | Contractual Interest Rate Reduction and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	0
Loans to individuals [Member] | Automobiles | Contractual Interest Rate Reduction, Term Extension, and Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post- Modification Outstanding Recorded Investment	$ 15
Loans to individuals [Member] | Automobile Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | Rate	2.39%
Financing Receivable, Modified, Weighted Average Term Increase from Modification	2 years 7 months 6 days
Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification	$ 0
Financing Receivable, Modified, Payment Deferral | yr	0.4