Investments (Summary of Realized Gain (Loss) on Investments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Schedule of Investments [Line Items]
(Loss) gain on investments	$ (10)	$ 1,597	$ 175	$ 2,773
Other-than-temporary impairment	(274)		(274)
Net realized (losses) gains	(284)	1,597	(99)	2,773
Corporate Bonds [Member]
Schedule of Investments [Line Items]
(Loss) gain on investments	(21)	467	133	825
Collateralized Corporate Bank Loans [Member]
Schedule of Investments [Line Items]
(Loss) gain on investments	30	98	89	271
Municipal Bonds [Member]
Schedule of Investments [Line Items]
(Loss) gain on investments	(26)	48	(54)	40
Mortgage Backed [Member]
Schedule of Investments [Line Items]
(Loss) gain on investments	3		3
Equity Securities [Member]
Schedule of Investments [Line Items]
(Loss) gain on investments	$ 4	$ 984	$ 4	$ 1,637