Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reconciliation of income tax expense (benefit) [Abstract]
Federal income tax provision at statutory rate of 21%	$ 1,110	$ (1,334)
Dividends-received deduction	(9)	(10)
Other permanent differences	22	17
Income tax expense (benefit)	$ 1,123	(1,327)
Federal statutory income tax rate	21.00%
Components of income tax expense (benefit) [Abstract]
Current - Federal	$ 0	36
Deferred - Federal	1,123	(1,363)
Income tax expense (benefit)	$ 1,123	$ (1,327)