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Investments Net Investment Income by Major Category (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Investments, Debt and Equity Securities [Abstract]    
Net Investment Income, Insurance Entity, Fixed Maturities $ 674 $ 679
Net Investment Income, Insurance Entity, Equity Securities 33 34
Net Investment Income, Insurance Entity, Cash and Cash Equivalents and Short-term Investments 10 23
Net Investment Income, Insurance Entity, Other Long-term Investments 7 11
Net Investment Income, Insurance Entity 724 747
Investment Income, Investment Expense (78) (71)
Investment Income, Net $ 646 $ 676