Loans and Allowance for Loan Losses - Average Recorded Investment and Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
With an allowance recorded:
Average Recorded Investment	$ 2,619	$ 24,323
Interest Recognized For the Period Ended	17	23
Total average recorded investment	24,636	36,946
Total interest income recognized For the Period Ended	26	40
Commercial, Financial, & Agricultural
With no related allowance recorded:
Average Recorded Investment	0	1,742
Interest Recognized For the Period Ended	0	8
With an allowance recorded:
Average Recorded Investment	323	5,696
Interest Recognized For the Period Ended	3	7
Commercial real estate
With no related allowance recorded:
Average Recorded Investment	2	0
Interest Recognized For the Period Ended	0	0
Commercial real estate \| Construction
With no related allowance recorded:
Average Recorded Investment	759	1,424
Interest Recognized For the Period Ended	9	9
With an allowance recorded:
Average Recorded Investment	101	199
Interest Recognized For the Period Ended	0	0
Commercial real estate \| Mortgages
With an allowance recorded:
Average Recorded Investment	440	16,195
Interest Recognized For the Period Ended	7	7
Residential real estate \| Construction
With an allowance recorded:
Average Recorded Investment	0	190
Interest Recognized For the Period Ended	0	0
Residential real estate \| Mortgages
With no related allowance recorded:
Average Recorded Investment	21,256	9,457
Interest Recognized For the Period Ended	0	0
With an allowance recorded:
Average Recorded Investment	1,659	1,958
Interest Recognized For the Period Ended	7	6
Installment and Other Consumer
With no related allowance recorded:
Average Recorded Investment	22,017	12,623
Interest Recognized For the Period Ended	9	17
With an allowance recorded:
Average Recorded Investment	96	85
Interest Recognized For the Period Ended	$ 0	$ 3

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+ References

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

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-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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