Fair Value Measurements, Reconciliation for Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($)		3 Months Ended	12 Months Ended
		Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance		$ 31,134,220
Total unrealized gain (losses) [Abstract]
Included in realized gains (losses)		778,984
Included in other comprehensive income		(14,515)
Purchases		5,259,250
Sales		(103,300)
Ending Balance		37,054,639	$ 31,134,220
Change in fair value of equity securities included in net income (loss) relating to assets held		778,984	0
Fixed Maturities, Available for Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance		478,389
Total unrealized gain (losses) [Abstract]
Included in realized gains (losses)		0
Included in other comprehensive income		(14,515)
Purchases		0
Sales		0
Ending Balance		463,874	478,389
Equity Securities, Available for Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	[1]	30,655,831
Total unrealized gain (losses) [Abstract]
Included in realized gains (losses)	[1]	778,984
Included in other comprehensive income	[1]	0
Purchases	[1]	5,259,250
Sales	[1]	(103,300)
Ending Balance	[1]	$ 36,590,765	$ 30,655,831

[1] Effective January 1, 2018, the Company adopted ASU No. 2016-01 and equity securities are no longer classified as available-for-sale. Prior periods have not been restated to conform to the current presentation. See Note 2 to the Condensed Consolidated Financial Statements for additional information.