Fair Value Measurements - Change in Fair Value Bond Portfolio (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Balance at December 31, 2019	$ 16,055,937
Other than temporary investements on bond portfolio	(112,802)	$ (150,000)
Purchases	1,721,000
Proceeds	(122,000)
Balance at June 30, 2020	$ 18,284,135