Accumulated Other Comprehensive Income (Amounts reclassified out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net realized investment gains (losses)	$ 7	$ 142
Tax (expense) or benefit	(360)	(478)
Net income	941	1,308	$ 4,697
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net realized investment gains (losses)	18	142
Total before tax	18	142
Tax (expense) or benefit	(6)	(48)
Net income	$ 12	$ 94