Loans and Allowance for Loan Losses - Schedule of Internal Loan Grading by Class of Loans (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Total Loans	$ 366,662,213	$ 330,191,311
Commercial, Financial and Agricultural Loans [Member]
Total Loans	87,717,667	73,146,397
Construction Loans [Member]
Total Loans	30,799,672	22,287,012
Commercial Mortgage Loans [Member]
Total Loans	105,935,188	106,458,342
Residential Loans [Member]
Total Loans	104,797,473	99,159,607
Agricultural Loans [Member]
Total Loans	32,234,234	25,373,621
Consumer and Other Loans [Member]
Total Loans	5,177,979	3,766,332
Rating, Grade 1- Exceptional [Member]
Total Loans	1,401,931	1,720,290
Rating, Grade 1- Exceptional [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	1,154,573	1,371,135
Rating, Grade 1- Exceptional [Member] | Construction Loans [Member]
Total Loans	0	0
Rating, Grade 1- Exceptional [Member] | Commercial Mortgage Loans [Member]
Total Loans	0	0
Rating, Grade 1- Exceptional [Member] | Residential Loans [Member]
Total Loans	23,162	23,919
Rating, Grade 1- Exceptional [Member] | Agricultural Loans [Member]
Total Loans	0	0
Rating, Grade 1- Exceptional [Member] | Consumer and Other Loans [Member]
Total Loans	224,196	325,236
Rating, Grade 2- Above Avg. [Member]
Total Loans	47,124	51,421
Rating, Grade 2- Above Avg. [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	0	0
Rating, Grade 2- Above Avg. [Member] | Construction Loans [Member]
Total Loans	0	0
Rating, Grade 2- Above Avg. [Member] | Commercial Mortgage Loans [Member]
Total Loans	0	0
Rating, Grade 2- Above Avg. [Member] | Residential Loans [Member]
Total Loans	0	0
Rating, Grade 2- Above Avg. [Member] | Agricultural Loans [Member]
Total Loans	0	0
Rating, Grade 2- Above Avg. [Member] | Consumer and Other Loans [Member]
Total Loans	47,124	51,421
Rating, Grade 3- Acceptable [Member]
Total Loans	101,794,508	97,442,348
Rating, Grade 3- Acceptable [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	24,816,412	27,024,359
Rating, Grade 3- Acceptable [Member] | Construction Loans [Member]
Total Loans	2,808,071	2,085,620
Rating, Grade 3- Acceptable [Member] | Commercial Mortgage Loans [Member]
Total Loans	29,509,132	30,090,030
Rating, Grade 3- Acceptable [Member] | Residential Loans [Member]
Total Loans	25,720,496	26,304,640
Rating, Grade 3- Acceptable [Member] | Agricultural Loans [Member]
Total Loans	17,661,087	11,071,244
Rating, Grade 3- Acceptable [Member] | Consumer and Other Loans [Member]
Total Loans	1,279,310	866,455
Rating, Grade 4- Fair [Member]
Total Loans	247,965,050	217,491,441
Rating, Grade 4- Fair [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	56,818,038	42,821,117
Rating, Grade 4- Fair [Member] | Construction Loans [Member]
Total Loans	27,698,598	19,772,593
Rating, Grade 4- Fair [Member] | Commercial Mortgage Loans [Member]
Total Loans	71,453,241	70,518,545
Rating, Grade 4- Fair [Member] | Residential Loans [Member]
Total Loans	74,159,559	68,103,351
Rating, Grade 4- Fair [Member] | Agricultural Loans [Member]
Total Loans	14,240,468	13,781,326
Rating, Grade 4- Fair [Member] | Consumer and Other Loans [Member]
Total Loans	3,595,146	2,494,509
Rating, Grade 5a- Watch [Member]
Total Loans	1,748,904	1,952,751
Rating, Grade 5a- Watch [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	439,329	120,626
Rating, Grade 5a- Watch [Member] | Construction Loans [Member]
Total Loans	0	0
Rating, Grade 5a- Watch [Member] | Commercial Mortgage Loans [Member]
Total Loans	349,677	1,027,581
Rating, Grade 5a- Watch [Member] | Residential Loans [Member]
Total Loans	943,656	757,628
Rating, Grade 5a- Watch [Member] | Agricultural Loans [Member]
Total Loans	0	39,344
Rating, Grade 5a- Watch [Member] | Consumer and Other Loans [Member]
Total Loans	16,242	7,572
Rating, Grade 5b- OAEM [Member]
Total Loans	4,901,234	5,197,060
Rating, Grade 5b- OAEM [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	3,120,647	557,070
Rating, Grade 5b- OAEM [Member] | Construction Loans [Member]
Total Loans	0	0
Rating, Grade 5b- OAEM [Member] | Commercial Mortgage Loans [Member]
Total Loans	467,918	3,073,051
Rating, Grade 5b- OAEM [Member] | Residential Loans [Member]
Total Loans	1,312,638	1,226,841
Rating, Grade 5b- OAEM [Member] | Agricultural Loans [Member]
Total Loans	0	338,741
Rating, Grade 5b- OAEM [Member] | Consumer and Other Loans [Member]
Total Loans	31	1,357
Rating, Grade 6- Substandard [Member]
Total Loans	8,430,244	6,029,148
Rating, Grade 6- Substandard [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	995,450	945,238
Rating, Grade 6- Substandard [Member] | Construction Loans [Member]
Total Loans	293,003	428,799
Rating, Grade 6- Substandard [Member] | Commercial Mortgage Loans [Member]
Total Loans	4,155,220	1,749,135
Rating, Grade 6- Substandard [Member] | Residential Loans [Member]
Total Loans	2,637,962	2,743,228
Rating, Grade 6- Substandard [Member] | Agricultural Loans [Member]
Total Loans	332,679	142,966
Rating, Grade 6- Substandard [Member] | Consumer and Other Loans [Member]
Total Loans	15,930	19,782
Rating, Grade 7- Doubtful [Member]
Total Loans	373,218	306,852
Rating, Grade 7- Doubtful [Member] | Commercial, Financial and Agricultural Loans [Member]
Total Loans	373,218	306,852
Rating, Grade 7- Doubtful [Member] | Construction Loans [Member]
Total Loans	0	0
Rating, Grade 7- Doubtful [Member] | Commercial Mortgage Loans [Member]
Total Loans	0	0
Rating, Grade 7- Doubtful [Member] | Residential Loans [Member]
Total Loans	0	0
Rating, Grade 7- Doubtful [Member] | Agricultural Loans [Member]
Total Loans	0	0
Rating, Grade 7- Doubtful [Member] | Consumer and Other Loans [Member]
Total Loans	$ 0	$ 0