Investments (Details Textuals 7)	Sep. 30, 2012	Dec. 31, 2011
Investments [Abstract]
Time period reporting categories for continuous gross unrealized loss and other than temporary loss for fixed maturity and equity securities available-for-sale securities by sector investment disclosure, less than stated months	12 months	12 months
Time period reporting categories for continuous gross unrealized loss and other than temporary loss for fixed maturity and equity securities available-for-sale securities by sector investment disclosure, equal to or greater than stated months	12 months	12 months