Fair Value Disclosures - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Assets:
Cash and cash equivalents, Carrying Amount	$ 55,547,721	$ 68,748,308	$ 68,932,872	$ 79,964,633
Securities available for sale, Carrying Amount	137,133,000	129,422,000
Restricted investments, Carrying Amount	5,627,950	5,627,950
Loans, net, Carrying Amount	802,387,400	808,271,003
Cash and cash equivalents, Estimated Fair Value	55,548,000	68,748,000
Securities available for sale, Estimated Fair Value	137,133,000	129,422,000
Loans, net, Estimated Fair Value	795,077,000	803,057,000
Liabilities:
Noninterest-bearing demand deposits, Carrying Amount	160,672,567	153,482,650
Interest-bearing demand deposits, Carrying Amount	167,433,130	162,702,457
Money Market and Savings deposits, Carrying Amount	274,993,000	274,605,000
Time deposits, Carrying Amount	286,600,177	316,275,340
Securities sold under agreements to repurchase, Carrying Amount	23,153,397	26,621,984
Federal Home Loan Bank advances and other borrowings, Carrying Amount	60,000	18,505,390
Noninterest-bearing demand deposits, Estimated Fair Value	160,673,000	153,483,000
Interest-bearing demand deposits, Estimated Fair Value	167,433,000	162,702,000
Money Market and Savings deposits, Estimated Fair Value	274,993,000	274,605,000
Time deposits, Estimated Fair Value	286,414,000	316,734,000
Securities sold under agreements to repurchase, Estimated Fair Value	23,153,000	26,622,000
Federal Home Loan Bank advances and other borrowings, Estimated Fair Value	$ 60,000	$ 18,505,000