Investments - Securities in Unrealized Loss Position (Details)	Sep. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
U.S. treasury securities
Fair value, less than 12 months	$ 1,093,984	$ 1,760,491
Fair value, 12 months or longer	1,998,768	8,496,069
Gross unrealized losses, less than 12 months	1,351	20,181
Gross unrealized losses, 12 months or longer	$ 4,628	$ 123,101
Number of securities in unrealized loss positions for less than 12 months	1	2
Number of securities in unrealized loss positions for 12 months or longer	2	6
Corporate securities
Fair value, less than 12 months	$ 498,404	$ 10,878,381
Fair value, 12 months or longer	1,698,824	21,189,487
Gross unrealized losses, less than 12 months	1,596	272,515
Gross unrealized losses, 12 months or longer	$ 792	$ 578,609
Number of securities in unrealized loss positions for less than 12 months	1	17
Number of securities in unrealized loss positions for 12 months or longer	2	27
Agency mortgage backed securities
Fair value, less than 12 months	$ 3,085,390	$ 0
Fair value, 12 months or longer	0	17,034,086
Gross unrealized losses, less than 12 months	3,056	0
Gross unrealized losses, 12 months or longer	$ 0	$ 472,293
Number of securities in unrealized loss positions for less than 12 months	3	0
Number of securities in unrealized loss positions for 12 months or longer	0	15
Total fixed maturities
Fair value, less than 12 months	$ 4,677,778
Fair value, 12 months or longer	3,697,592
Gross unrealized losses, less than 12 months	6,003
Gross unrealized losses, 12 months or longer	$ 5,420
Number of securities in unrealized loss positions for less than 12 months	5
Number of securities in unrealized loss positions for 12 months or longer	4
Total fixed maturities
Fair value, less than 12 months		$ 12,638,872
Fair value, 12 months or longer		46,719,642
Gross unrealized losses, less than 12 months		292,696
Gross unrealized losses, 12 months or longer		$ 1,174,003
Number of securities in unrealized loss positions for less than 12 months		19
Number of securities in unrealized loss positions for 12 months or longer		48