Loans and Allowance for Loan Losses - Schedule of Past Due Loans and Nonaccrual Loans (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Total Past Due Loans	$ 2,334,847	$ 3,262,152
Nonaccrual Loans	1,505,953	1,674,656
Current Loans	331,362,351	325,254,503
Total Loans	335,203,151	330,191,311
Financing Receivables, 30 to 89 Days Past Due [Member]
Total Past Due Loans	2,334,847	3,262,152
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total Past Due Loans	0	0
Commercial, Financial and Agricultural Loans [Member]
Total Past Due Loans	503,072	364,527
Nonaccrual Loans	267,838	394,455
Current Loans	72,113,310	72,387,415
Total Loans	72,884,220	73,146,397
Commercial, Financial and Agricultural Loans [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Total Past Due Loans	503,072	364,527
Commercial, Financial and Agricultural Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total Past Due Loans	0	0
Construction Loans [Member]
Total Past Due Loans	195,527	198,861
Nonaccrual Loans	0	0
Current Loans	24,203,143	22,088,151
Total Loans	24,398,670	22,287,012
Construction Loans [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Total Past Due Loans	195,527	198,861
Construction Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total Past Due Loans	0	0
Commercial Mortgage Loans [Member]
Total Past Due Loans	347,959	645,214
Nonaccrual Loans	1,023,901	757,085
Current Loans	103,449,049	105,056,043
Total Loans	104,820,909	106,458,342
Commercial Mortgage Loans [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Total Past Due Loans	347,959	645,214
Commercial Mortgage Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total Past Due Loans	0	0
Residential Loans [Member]
Total Past Due Loans	1,123,655	2,023,517
Nonaccrual Loans	214,214	518,301
Current Loans	99,480,608	96,617,789
Total Loans	100,818,477	99,159,607
Residential Loans [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Total Past Due Loans	1,123,655	2,023,517
Residential Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total Past Due Loans	0	0
Agricultural Loans [Member]
Total Past Due Loans	136,444	0
Nonaccrual Loans	0	0
Current Loans	27,581,352	25,373,621
Total Loans	27,717,796	25,373,621
Agricultural Loans [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Total Past Due Loans	136,444	0
Agricultural Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total Past Due Loans	0	0
Consumer and Other Loans [Member]
Total Past Due Loans	28,190	30,033
Nonaccrual Loans	0	4,815
Current Loans	4,534,889	3,731,484
Total Loans	4,563,079	3,766,332
Consumer and Other Loans [Member] | Financing Receivables, 30 to 89 Days Past Due [Member]
Total Past Due Loans	28,190	30,033
Consumer and Other Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Total Past Due Loans	$ 0	$ 0