Summary of Significant Accounting Policies - Additional Information (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($) Investment Insured $ / shares	Dec. 31, 2018 USD ($) Insured	Mar. 31, 2019 $ / shares
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Prepaid management fee amortization period	7 years
Charges for extended reporting coverage	$ 0
Age for extended reporting coverage for policyholders	55 years
Minimum duration of policy for extended coverage	1 year
Number of investment accounted for greater than 5% | Investment	0
Number of insured accounted for over 20% | Insured	0	0
Common stock, no par value | $ / shares
Common stock, par value | $ / shares	$ 0.01
Additional paid-in capital	$ 49,421,081	$ 15,882,835
Reclassifications [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Additional paid-in capital	$ 33,580,925