Investments - Unrealized appreciation on investments (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Notes to Financial Statements
Gross unrealized appreciation of fixed maturities	$ 3,416,535	$ 1,500,333
Gross unrealized (depreciation) of fixed maturities	(78,121)	(3,034)
Net unrealized appreciation (depreciation) on investments	3,338,414	1,497,299
Deferred federal tax expense (benefit)	(701,067)	(314,433)
Net unrealized appreciation (depreciation), net of deferred income taxes	$ 2,637,347	$ 1,182,866