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Loans and Allowance for Loan Losses - Schedule of Loan Portfolio and Percentage of Loans in Each Category to Total Loans (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Loans outstanding $ 394,630,148 $ 376,767,688
Unearned interest and discount (17,397) (17,451)
Allowance for loan losses (3,505,044) (3,428,869)
Net loans $ 391,107,707 $ 373,321,368
Percentage of loan and allowance for loan losses 100.00% 100.00%
Commercial, Financial and Agricultural Loans [Member]    
Loans outstanding $ 91,063,471 $ 88,403,215
Percentage of loan and allowance for loan losses 23.10% 23.50%
Construction Loans [Member]    
Loans outstanding $ 25,449,257 $ 24,890,536
Percentage of loan and allowance for loan losses 6.40% 6.60%
Commercial Mortgage Loans [Member]    
Loans outstanding $ 139,295,471 $ 123,477,369
Percentage of loan and allowance for loan losses 35.30% 32.80%
Residential Loans [Member]    
Loans outstanding $ 101,723,469 $ 103,347,898
Percentage of loan and allowance for loan losses 25.80% 27.40%
Agricultural Loans [Member]    
Loans outstanding $ 31,769,398 $ 31,561,686
Percentage of loan and allowance for loan losses 8.10% 8.40%
Consumer and Other Loans [Member]    
Loans outstanding $ 5,329,082 $ 5,086,984
Percentage of loan and allowance for loan losses 1.30% 1.30%