Investments Net Investment Income by Major Category (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Investments, Debt and Equity Securities [Abstract]
Net Investment Income, Insurance Entity, Fixed Maturities	$ 2,902	$ 2,628	$ 3,639
Net Investment Income, Insurance Entity, Equity Securities	138	142	203
Net Investment Income, Insurance Entity, Cash and Cash Equivalents and Short-term Investments	43	19	37
Net Investment Income, Insurance Entity, Other Long-term Investments	0	34	0
Net Investment Income, Insurance Entity	3,083	2,823	3,879
Investment Income, Investment Expense	(142)	(140)	(147)
Investment Income, Net	$ 2,941	$ 2,683	$ 3,732