Loans and Allowance for Loan Losses - Past Due Loans and Nonaccrual Loans (Details) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
30-89 Days Past Due	$ 3,425,280	$ 3,853,614
Greater than 90 Days	0	521
Total Past Due Loans	3,425,280	3,854,135
Nonaccrual Loans	351,864	1,545,599
Current Loans	283,469,383	245,405,647
Total Loans	287,246,527	250,805,381
Commercial, Financial And Agricultural Loans [Member]
30-89 Days Past Due	1,849,423	449,618
Greater than 90 Days	0	521
Total Past Due Loans	1,849,423	450,139
Nonaccrual Loans	351,864	0
Current Loans	70,099,891	57,723,048
Total Loans	72,301,178	58,173,187
Construction Loans [Member]
30-89 Days Past Due	67,327	121,694
Greater than 90 Days	0	0
Total Past Due Loans	67,327	121,694
Nonaccrual Loans	0	0
Current Loans	23,543,468	19,709,376
Total Loans	23,610,795	19,831,070
Commercial Mortgage Loans [Member]
30-89 Days Past Due	821,018	810,515
Greater than 90 Days	0	0
Total Past Due Loans	821,018	810,515
Nonaccrual Loans	0	0
Current Loans	87,786,231	84,966,844
Total Loans	88,607,249	85,777,359
Residential Loans [Member]
30-89 Days Past Due	658,001	2,238,684
Greater than 90 Days	0	0
Total Past Due Loans	658,001	2,238,684
Nonaccrual Loans	0	639,094
Current Loans	81,391,315	65,091,341
Total Loans	82,049,316	67,969,119
Agricultural Loans [Member]
30-89 Days Past Due	0	148,761
Greater than 90 Days	0	0
Total Past Due Loans	0	148,761
Nonaccrual Loans	0	906,505
Current Loans	16,415,755	14,565,000
Total Loans	16,415,755	15,620,266
Consumer And Other Loans [Member]
30-89 Days Past Due	29,511	84,342
Greater than 90 Days	0	0
Total Past Due Loans	29,511	84,342
Nonaccrual Loans	0	0
Current Loans	4,232,723	3,350,038
Total Loans	$ 4,262,234	$ 3,434,380