Commitments, Contingent Liabilities, and Financial Instruments with Off-Balance Sheet Risk - Contractual or Notional Amounts of Financial Instruments (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments to extend credit	$ 34,031,164	$ 24,780,028
Standby letters of credit and financial guarantees	$ 2,660,000	$ 960,000