Loans and Allowance for Loan Losses - Average Recorded Investment and Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
With no related allowance recorded:
With no related allowance recorded, Average Recorded Investment	$ 12,551	$ 7,808	$ 12,683	$ 4,186
With no related allowance recorded, Interest Recognized For The Period Ended	17	7	34	13
With an allowance recorded:
With an allowance recorded, Average Recorded Investment	23,916	6,792	23,927	4,900
With an allowance recorded, Interest Recognized For The Period Ended	19	23	42	60
Total average recorded investment	36,467	14,600	36,610	9,086
Total interest income recognized For the Period Ended	36	30	76	73
Commercial, financial, and agricultural
With no related allowance recorded:
With no related allowance recorded, Average Recorded Investment	1,826	3,059	1,834	1,370
With no related allowance recorded, Interest Recognized For The Period Ended	5		13	0
With an allowance recorded:
With an allowance recorded, Average Recorded Investment	5,553	1,615	5,548	1,195
With an allowance recorded, Interest Recognized For The Period Ended	7	11	13	19
Residential real estate \| Construction
With an allowance recorded:
With an allowance recorded, Average Recorded Investment	125		158	0
With an allowance recorded, Interest Recognized For The Period Ended			0	0
Residential real estate \| Mortgages
With no related allowance recorded:
With no related allowance recorded, Average Recorded Investment	1,266	2,758	1,391	1,355
With no related allowance recorded, Interest Recognized For The Period Ended	12		21	0
With an allowance recorded:
With an allowance recorded, Average Recorded Investment	1,692	3,724	1,779	2,990
With an allowance recorded, Interest Recognized For The Period Ended	4	8	11	28
Commercial real estate \| Construction
With no related allowance recorded:
With no related allowance recorded, Average Recorded Investment	0	528	0	271
With no related allowance recorded, Interest Recognized For The Period Ended	0	0	0	0
With an allowance recorded:
With an allowance recorded, Average Recorded Investment	165	766	182	142
With an allowance recorded, Interest Recognized For The Period Ended			0	0
Commercial real estate \| Mortgages
With no related allowance recorded:
With no related allowance recorded, Average Recorded Investment	9,459	1,448	9,458	1,178
With no related allowance recorded, Interest Recognized For The Period Ended		7	0	13
With an allowance recorded:
With an allowance recorded, Average Recorded Investment	16,323	540	16,189	438
With an allowance recorded, Interest Recognized For The Period Ended	8	3	15	6
Installment and other consumer
With no related allowance recorded:
With no related allowance recorded, Average Recorded Investment	0	15	0	12
With no related allowance recorded, Interest Recognized For The Period Ended	0	0	0	0
With an allowance recorded:
With an allowance recorded, Average Recorded Investment	$ 58	147	71	135
With an allowance recorded, Interest Recognized For The Period Ended		$ 1	$ 3	$ 7

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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=121611835&loc=d3e5212-111524

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-Topic 310
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-Topic 310
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