Investments (Summary of Amortized Cost and Fair Value of Securities by Contractual Maturity) (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Investments [Abstract]
Due in one year or less, amortized cost	$ 1,500,544
Due after one year through five years, amortized cost	22,428,557
Due after five years through 10 years, amortized cost	11,892,260
Due after 10 years, amortized cost	20,367,545
Asset and mortgage backed securities without a specific due date, amortized cost	31,584,141
Fixed maturity securities, amortized cost	87,773,047	$ 62,929,091
Due in one year or less, fair value	1,499,050
Due after one year through five years, fair value	22,911,341
Due after five years through 10 years, fair value	12,405,986
Due after 10 years, fair value	21,270,034
Asset and mortgage backed securities witout a specific due date, fair value	31,518,662
Fixed maturity securities, fair value	$ 89,605,073	$ 64,134,023