Investments - Unrealized Gains (Losses) on Investments in Fixed Maturities (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Notes to Financial Statements
Gross unrealized gains on fixed maturities	$ 53,065	$ 14,205
Gross unrealized losses on fixed maturities	(63,519)	(2,122)
Net unrealized gains (losses) on fixed maturities	(10,454)	12,083
Deferred federal tax (expense) benefit	3,554	(4,108)
Net unrealized gains (losses), net of deferred income taxes	$ (6,900)	$ 7,975