Loans and Allowance for Loan Losses - Schedule of Troubled Debt Restructuring by Loan Class (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Troubled Debt Restructuring	$ 4,275	$ 7,458
Current [Member]
Troubled Debt Restructuring	4,275	7,458
Default [Member]
Troubled Debt Restructuring	0	0
Accruing [Member]
Troubled Debt Restructuring	4,275	7,458
Non-accruing [Member]
Troubled Debt Restructuring	0	0
Commercial, Financial and Agricultural Loans [Member] | Current [Member]
Troubled Debt Restructuring	4,275	5,570
Commercial, Financial and Agricultural Loans [Member] | Default [Member]
Troubled Debt Restructuring	0	0
Commercial, Financial and Agricultural Loans [Member] | Accruing [Member]
Troubled Debt Restructuring	4,275	5,570
Commercial, Financial and Agricultural Loans [Member] | Non-accruing [Member]
Troubled Debt Restructuring	0	0
Construction Loans [Member] | Current [Member]
Troubled Debt Restructuring	0	0
Construction Loans [Member] | Default [Member]
Troubled Debt Restructuring	0	0
Construction Loans [Member] | Accruing [Member]
Troubled Debt Restructuring	0	0
Construction Loans [Member] | Non-accruing [Member]
Troubled Debt Restructuring	0	0
Commercial Mortgage Loans [Member] | Current [Member]
Troubled Debt Restructuring	0	0
Commercial Mortgage Loans [Member] | Default [Member]
Troubled Debt Restructuring	0	0
Commercial Mortgage Loans [Member] | Accruing [Member]
Troubled Debt Restructuring	0	0
Commercial Mortgage Loans [Member] | Non-accruing [Member]
Troubled Debt Restructuring	0	0
Residential Loans [Member] | Current [Member]
Troubled Debt Restructuring	0	1,888
Residential Loans [Member] | Default [Member]
Troubled Debt Restructuring	0	0
Residential Loans [Member] | Accruing [Member]
Troubled Debt Restructuring	0	1,888
Residential Loans [Member] | Non-accruing [Member]
Troubled Debt Restructuring	0	0
Agricultural Loans [Member] | Current [Member]
Troubled Debt Restructuring	0	0
Agricultural Loans [Member] | Default [Member]
Troubled Debt Restructuring	0	0
Agricultural Loans [Member] | Accruing [Member]
Troubled Debt Restructuring	0	0
Agricultural Loans [Member] | Non-accruing [Member]
Troubled Debt Restructuring	0	0
Consumer and Other Loans [Member] | Current [Member]
Troubled Debt Restructuring	0	0
Consumer and Other Loans [Member] | Default [Member]
Troubled Debt Restructuring	0	0
Consumer and Other Loans [Member] | Accruing [Member]
Troubled Debt Restructuring	0	0
Consumer and Other Loans [Member] | Non-accruing [Member]
Troubled Debt Restructuring	$ 0	$ 0