Investments Fixed Maturities by Contractual Maturity Periods (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Amortized Cost
Due in one year or less	$ 9,124
Due after one year through five years	6,912
Due after five years through ten years	181
Due after ten years	1,052
Amortized Cost	17,269	$ 12,432
Estimated Fair Value
Due in one year or less	9,148
Due after one year through five years	6,937
Due after five years through ten years	180
Due after ten years	1,044
Estimated Fair Value, Fixed Maturities	$ 17,309	$ 12,260