Accumulated Other Comprehensive Income (Amounts reclassified out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net realized investment gains	$ 77	$ 242	$ 237	$ 249
Tax (expense) or benefit	734	(402)	1,133	(762)
Net Income (Loss)	$ (999)	$ 1,296	(1,315)	2,237	$ 3,063
Amounts Reclassified from Accumulated Other Comprehensive Income | Unrealized Gains and Losses on Available-for-Sale Securities
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net realized investment gains			235	260
Total before tax			235	260
Tax (expense) or benefit			(80)	(88)
Net Income (Loss)			$ 155	$ 172