Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Information of Loans Modified in Troubled Debt Restructuring (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022 USD ($) contract	Jun. 30, 2021 USD ($) contract	Jun. 30, 2022 USD ($) contract	Jun. 30, 2021 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	7	8	11	10
Pre- Modification Restructured Balances	$ 998	$ 2,655	$ 1,651	$ 2,926
Post- Modification Restructured Balances	$ 998	$ 2,655	$ 1,651	$ 2,923
Commercial, financial, and agricultural \| TDRs – Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	1	0	1	0
Pre- Modification Restructured Balances	$ 161	$ 0	$ 161	$ 0
Post- Modification Restructured Balances	$ 161	$ 0	$ 161	$ 0
Commercial, financial, and agricultural \| TDRs – Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	2	2	3	3
Pre- Modification Restructured Balances	$ 259	$ 715	$ 300	$ 826
Post- Modification Restructured Balances	$ 259	$ 715	$ 300	$ 823
Real estate, commercial \| Real estate – construction, land development & other land loans \| TDRs – Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	1	0	1	0
Pre- Modification Restructured Balances	$ 131	$ 0	$ 131	$ 0
Post- Modification Restructured Balances	$ 131	$ 0	$ 131	$ 0
Real estate, commercial \| Real estate – construction, land development & other land loans \| TDRs – Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	0	1	0	1
Pre- Modification Restructured Balances	$ 0	$ 75	$ 0	$ 75
Post- Modification Restructured Balances	$ 0	$ 75	$ 0	$ 75
Real estate, commercial \| Real estate – mortgage – commercial and other \| TDRs – Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract			0	1
Pre- Modification Restructured Balances			$ 0	$ 160
Post- Modification Restructured Balances			$ 0	$ 160
Real estate, commercial \| Real estate – mortgage – commercial and other \| TDRs – Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	1	3	2	3
Pre- Modification Restructured Balances	$ 244	$ 1,569	$ 784	$ 1,569
Post- Modification Restructured Balances	$ 244	$ 1,569	$ 784	$ 1,569
Real estate, mortgage \| Real estate – mortgage – residential (1-4 family) first mortgages \| TDRs – Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	0	1	1	1
Pre- Modification Restructured Balances	$ 0	$ 33	$ 36	$ 33
Post- Modification Restructured Balances	$ 0	$ 33	$ 36	$ 33
Real estate, mortgage \| Real estate – mortgage – residential (1-4 family) first mortgages \| TDRs – Nonaccrual
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	0	1	1	1
Pre- Modification Restructured Balances	$ 0	$ 263	$ 36	$ 263
Post- Modification Restructured Balances	$ 0	$ 263	$ 36	$ 263
Real estate, mortgage \| Real estate – mortgage – home equity loans / lines of credit \| TDRs – Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts \| contract	2	0	2	0
Pre- Modification Restructured Balances	$ 203	$ 0	$ 203	$ 0
Post- Modification Restructured Balances	$ 203	$ 0	$ 203	$ 0

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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