Investments Net Investment Income by Major Category (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Investment Income [Line Items]
Net investment income	$ 1,467	$ 724
Investment Income, Investment Expense	(69)	(78)
Investment Income, Net	1,398	646
Debt Securities [Member]
Net Investment Income [Line Items]
Net investment income	1,277	674
Equity Securities [Member]
Net Investment Income [Line Items]
Net investment income	126	33
Cash and Cash Equivalents [Member]
Net Investment Income [Line Items]
Net investment income	1	10
Partnership Interest [Member]
Net Investment Income [Line Items]
Net investment income	$ 63	$ 7