Investments - Schedule of Net Investment Income (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Marketable Securities [Line Items]
Gross investment income	$ 798,409	$ 697,161	$ 2,259,093	$ 2,008,256
Less investment expenses	28,402	33,584	94,583	93,646
Net investment income	770,007	663,577	2,164,510	1,914,610
Bonds [Member]
Marketable Securities [Line Items]
Gross investment income	621,987	592,550	1,748,218	1,726,507
Cash and Short-term Investments [Member]
Marketable Securities [Line Items]
Gross investment income	108,572	19,196	286,156	48,790
Equity Securities [Member]
Marketable Securities [Line Items]
Gross investment income	60,975	83,365	202,468	231,878
Other Investments [Member]
Marketable Securities [Line Items]
Gross investment income	$ 6,875	$ 2,050	$ 22,251	$ 1,081