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Investments (Narrative) (Details)	Jun. 30, 2013 security
Schedule of Investments [Line Items]
Securities evaluated for other than temporary impairment	37
S&P Rated AAA [Member]
Schedule of Investments [Line Items]
Securities evaluated for other than temporary impairment	10
S&P Rated AA [Member]
Schedule of Investments [Line Items]
Securities evaluated for other than temporary impairment	26
S&P Rated A [Member]
Schedule of Investments [Line Items]
Securities evaluated for other than temporary impairment	1
US Agency Obligations [Member]
Schedule of Investments [Line Items]
Securities evaluated for other than temporary impairment	12
Municipals [Member]
Schedule of Investments [Line Items]
Securities evaluated for other than temporary impairment	22
US Corporation [Member]
Schedule of Investments [Line Items]
Securities evaluated for other than temporary impairment	3

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