Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Premiums earned	$ 249,551	$ 254,326	$ 244,427
Claims service income	1,261	889	1,011
Net investment income	21,041	23,466	23,132
Total other-than-temporary impairment losses			(258)
Net impairment losses recognized in earnings			(258)
Other net realized gains (losses) recognized in earnings	1,051	15,425	(171)
Other income	4,257	4,253	5,284
	277,161	298,359	273,425
Loss and loss adjustment expenses	218,413	223,050	174,324
Underwriting, acquisition and insurance expenses	75,521	72,084	72,837
Interest expense	525	528	599
Goodwill impairment		1,527
Other expenses	8,028	7,509	9,079
	302,487	304,698	256,839
Income (loss) before taxes	(25,326)	(6,339)	16,586
Current	(5,454)	(7,015)	5,805
Deferred	(5,346)	2,259	(2,754)
	(10,800)	(4,756)	3,051
Net income (loss)	(14,526)	(1,583)	13,535
Increase in net unrealized gains on investment securities available for sale	28,319	4,227	22,527
Less: Reclassification adjustment for net realized losses (gains) recorded into net income	(1,051)	(15,425)	429
Income tax benefit (expense) related to items of other comprehensive income (loss)	(9,590)	3,862	(6,020)
Other comprehensive income (loss)	17,678	(7,336)	16,936
Comprehensive income (loss)	$ 3,152	$ (8,919)	$ 30,471
Basic earnings (loss) per share (in Dollars per share)	$ (0.69)	$ (0.08)	$ 0.65
Diluted earnings (loss) per share (in Dollars per share)	$ (0.69)	$ (0.08)	$ 0.63
Weighted average basic shares outstanding (in Shares)	21,118,711	20,867,720	20,702,572
Weighted average diluted shares outstanding (in Shares)	21,118,711	20,867,720	21,515,153