Loans and Allowance for Loan Losses - Schedule of Impaired Loans Segregated by Class of Loans (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Unpaid Principal Balance	$ 2,752,820	$ 4,187,966
Recorded Investment With No Allowance	929,233	2,686,743
Recorded Investment With Allowance	1,265,918	1,669,638
Total Recorded Investment	2,195,151	4,356,381	$ 4,895,730
Related Allowance	478,153	518,230	$ 331,779
Year-to-date Average Recorded Investment	1,907,944	3,817,174
Interest Income Received During Impairment	170,660	257,334
Commercial, Financial and Agricultural Loans [Member]
Unpaid Principal Balance	1,247,947	184,899
Recorded Investment With No Allowance	62,475	87,525
Recorded Investment With Allowance	1,098,818	568,816
Total Recorded Investment	1,161,293	656,341
Related Allowance	430,318	276,392
Year-to-date Average Recorded Investment	939,937	370,038
Interest Income Received During Impairment	83,335	52,411
Construction Loans [Member]
Unpaid Principal Balance	63,708	402,234
Recorded Investment With No Allowance	63,708	281,434
Recorded Investment With Allowance	0	0
Total Recorded Investment	63,708	281,434
Related Allowance	0	0
Year-to-date Average Recorded Investment	63,708	281,434
Interest Income Received During Impairment	4,533	25,364
Commercial Mortgage Loans [Member]
Unpaid Principal Balance	847,287	1,787,305
Recorded Investment With No Allowance	249,582	1,277,611
Recorded Investment With Allowance	154,439	333,892
Total Recorded Investment	404,021	1,611,503
Related Allowance	47,690	51,854
Year-to-date Average Recorded Investment	365,940	1,544,299
Interest Income Received During Impairment	47,663	45,403
Residential Loans [Member]
Unpaid Principal Balance	581,217	1,801,002
Recorded Investment With No Allowance	553,468	1,027,647
Recorded Investment With Allowance	0	752,443
Total Recorded Investment	553,468	1,780,090
Related Allowance	0	188,368
Year-to-date Average Recorded Investment	525,698	1,594,390
Interest Income Received During Impairment	34,193	127,806
Agricultural Loans [Member]
Unpaid Principal Balance	0	12,526
Recorded Investment With No Allowance	0	12,526
Recorded Investment With Allowance	0	0
Total Recorded Investment	0	12,526
Related Allowance	0	0
Year-to-date Average Recorded Investment	0	12,526
Interest Income Received During Impairment	0	5,530
Consumer and Other Loans [Member]
Unpaid Principal Balance	12,661	0
Recorded Investment With No Allowance	0	0
Recorded Investment With Allowance	12,661	14,487
Total Recorded Investment	12,661	14,487
Related Allowance	145	1,616
Year-to-date Average Recorded Investment	12,661	14,487
Interest Income Received During Impairment	$ 936	$ 820

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

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=118936363&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5258-111524

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
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-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5278-111524

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