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Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	$ 4,095	$ 9,022
Nonaccrual Loans with an Allowance	23,964	19,492
Total Nonaccrual Loans	28,059	28,514
Commercial, financial, and agricultural
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	36	3,855
Nonaccrual Loans with an Allowance	10,752	6,374
Total Nonaccrual Loans	10,788	10,229
Real estate, commercial | Real estate – construction, land development & other land loans
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	0	0
Nonaccrual Loans with an Allowance	123	1,009
Total Nonaccrual Loans	123	1,009
Real estate, commercial | Real estate mortgage – commercial and other
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	4,059	5,010
Nonaccrual Loans with an Allowance	8,096	7,495
Total Nonaccrual Loans	12,155	12,505
Real estate, mortgage | Real estate mortgage – residential (1-4 family) first mortgages
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	0	157
Nonaccrual Loans with an Allowance	3,026	3,132
Total Nonaccrual Loans	3,026	3,289
Real estate, mortgage | Real estate mortgage – home equity loans / lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	0	0
Nonaccrual Loans with an Allowance	1,781	1,397
Total Nonaccrual Loans	1,781	1,397
Consumer loans
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	0	0
Nonaccrual Loans with an Allowance	186	85
Total Nonaccrual Loans	$ 186	$ 85

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+ References

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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Section 50
-Paragraph 16
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-Publisher FASB
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