Investments (Schedule of Fixed Maturities) (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Marketable Securities [Abstract]
Amortized Cost, Due in one year or less
Amortized Cost, Due after one year through five years	1,136,596
Amortized Cost, Due after five years through ten years	4,817,053
Amortized Cost, Due after ten years	13,273,192
Available-for-sale Securities, Debt Maturities, Amortized Cost	19,226,841	$ 21,529,779
Estimated Fair Value, Due in one year or less
Estimated Fair Value, Due after one year through five years	1,094,842
Estimated Fair Value, Due after five years through ten years	4,469,789
Estimated Fair Value, Due after ten years	11,819,552
Available-for-sale Securities, Debt Securities, Estimated Fair Value	$ 17,384,183	$ 21,005,907