Fair Value of Financial Instruments (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Financial Assets
Beginning balance	$ 104,096		$ 103,370		$ 131,509		$ 93,173
Transfers into Level 3	55,301	[1]	9,407	[2]	71,345	[1]	26,744	[2]
Transfers out of Level 3	(35,066)	[1]	(45,460)	[2]	(68,744)	[1]	(50,707)	[2]
Total gains or losses
Net realized gains (losses) included in net income	0		0		0		0
Net unrealized gains (losses) included in other comprehensive income	(1,430)		2,734		(2,478)		1,111
Purchases	0		0		0		0
Issuances	0		0		0		0
Sales	(334)		0		(334)		0
Settlements	0		0		0		0
Paydowns, maturities and distributions	(12,864)		(296)		(21,595)		(566)
Ending balance	109,703		69,755		109,703		69,755
Municipal bonds [Member]
Financial Assets
Beginning balance	15,146				12,275
Transfers into Level 3	1,000	[1]			3,907	[1]
Transfers out of Level 3	0	[1]			0	[1]
Total gains or losses
Net realized gains (losses) included in net income	0				0
Net unrealized gains (losses) included in other comprehensive income	(315)				(351)
Purchases	0				0
Issuances	0				0
Sales	0				0
Settlements	0				0
Paydowns, maturities and distributions	(12,067)				(12,067)
Ending balance	3,764				3,764
Corporate bonds [Member]
Financial Assets
Beginning balance	55,527		89,920		85,722		88,256
Transfers into Level 3	18,768	[1]	9,407	[2]	23,439	[1]	18,240	[2]
Transfers out of Level 3	(16,663)	[1]	(45,460)	[2]	(50,341)	[1]	(50,707)	[2]
Total gains or losses
Net realized gains (losses) included in net income	0		0		0		0
Net unrealized gains (losses) included in other comprehensive income	(824)		2,725		(1,709)		946
Purchases	0		0		0		0
Issuances	0		0		0		0
Sales	0		0		0		0
Settlements	0		0		0		0
Paydowns, maturities and distributions	(218)		(133)		(521)		(276)
Ending balance	56,590		56,459		56,590		56,459
Other mortgage-backed securities [Member]
Financial Assets
Beginning balance	33,083		13,065		33,172		4,532
Transfers into Level 3	35,533	[1]	0	[2]	43,999	[1]	8,504	[2]
Transfers out of Level 3	(18,403)	[1]	0	[2]	(18,403)	[1]	0	[2]
Total gains or losses
Net realized gains (losses) included in net income	0		0		0		0
Net unrealized gains (losses) included in other comprehensive income	(291)		9		(418)		165
Purchases	0		0		0		0
Issuances	0		0		0		0
Sales	0		0		0		0
Settlements	0		0		0		0
Paydowns, maturities and distributions	(579)		(163)		(9,007)		(290)
Ending balance	49,343		12,911		49,343		12,911
Total Fixed Maturities [Member]
Financial Assets
Beginning balance	103,756		102,985		131,169		92,788
Transfers into Level 3	55,301	[1]	9,407	[2]	71,345	[1]	26,744	[2]
Transfers out of Level 3	(35,066)	[1]	(45,460)	[2]	(68,744)	[1]	(50,707)	[2]
Total gains or losses
Net realized gains (losses) included in net income	0		0		0		0
Net unrealized gains (losses) included in other comprehensive income	(1,430)		2,734		(2,478)		1,111
Purchases	0		0		0		0
Issuances	0		0		0		0
Sales	0		0		0		0
Settlements	0		0		0		0
Paydowns, maturities and distributions	(12,864)		(296)		(21,595)		(566)
Ending balance	109,697		69,370		109,697		69,370
Equity securities [Member]
Financial Assets
Beginning balance	340		385		340		385
Transfers into Level 3	0	[1]	0	[2]	0	[1]	0	[2]
Transfers out of Level 3	0	[1]	0	[2]	0	[1]	0	[2]
Total gains or losses
Net realized gains (losses) included in net income	0		0		0		0
Net unrealized gains (losses) included in other comprehensive income	0		0		0		0
Purchases	0		0		0		0
Issuances	0		0		0		0
Sales	(334)		0		(334)		0
Settlements	0		0		0		0
Paydowns, maturities and distributions	0		0		0		0
Ending balance	$ 6		$ 385		$ 6		$ 385

[1] Transfers into and out of Level 3 during the periods ended June 30, 2013 were attributable to [changes in the availability of observable market information for individual fixed maturity securities]. The Company’s policy is to recognize transfers into and transfers out of the levels as of the ending date of the reporting period.

[2] Transfers into and out of Level 3 during the periods ended June 30, 2012 were attributable to changes in the availability of observable market information for individual fixed maturity securities. The Company’s policy is to recognize transfers into and transfers out of the levels as of the ending date of the reporting period.