Reinsurance (Schedule of Reinsurance Recoverable Allowance for Credit Loss) (Details)	12 Months Ended
	Dec. 31, 2020 USD ($)
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Allowance for expected credit losses at January 1, 2020	$ 690,127
Provision for expected credit losses	1,184,000
Allowance for expected credit losses at December 31, 2020	7,800,649
Cumulative Effect, Period Of Adoption, Adjustment
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Allowance for expected credit losses at January 1, 2020	$ 5,927,000