Condensed Consolidated Statements of Income (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues
Gross premiums written	$ 72,916	$ 62,993	$ 144,275	$ 124,084
Ceded premiums written	(3,388)	(4,603)	(6,970)	(9,242)
Net premiums written	69,528	58,390	137,305	114,842
Net premiums earned	60,261	52,982	120,350	108,040
Net investment income	6,597	6,675	13,143	13,215
Net realized gains on investments	145	293	248	2,845
Fee and other income	48	145	269	377
Total revenues	67,051	60,095	134,010	124,477
Expenses
Loss and loss adjustment expenses incurred	46,576	33,711	90,752	71,338
Underwriting and certain other operating costs	5,600	3,403	10,771	6,686
Commissions	4,497	3,993	8,783	7,992
Salaries and benefits	4,841	4,951	9,947	10,166
Interest expense	380	385	759	760
Policyholder dividends	364	210	719	474
Total expenses	62,258	46,653	121,731	97,416
Income before income taxes	4,793	13,442	12,279	27,061
Income tax expense	224	3,018	1,083	5,360
Net income	4,569	10,424	11,196	21,701
Net income available to common shareholders	$ 4,569	$ 10,424	$ 11,196	$ 21,701
Earnings per share
Basic	$ 0.25	$ 0.56	$ 0.61	$ 1.15
Diluted	$ 0.24	$ 0.54	$ 0.60	$ 1.13
Shares used in computing earnings per share
Basic	18,392,207	18,720,748	18,312,843	18,804,093
Diluted	18,846,466	19,160,004	18,774,376	19,238,093