Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues:
Premiums earned	$ 106,464	$ 69,233	$ 211,603	$ 139,414
Net investment income	7,796	5,012	14,698	9,971
Net realized gains on investments	1,316	1,669	2,516	2,551
Other	854	976	1,970	1,794
Total revenues	116,430	76,890	230,787	153,730
Expenses:
Losses and loss adjustment expenses	78,570	46,032	153,229	89,136
Commissions and other underwriting expenses	21,196	14,735	41,521	29,571
Other operating and general expenses	4,095	3,996	8,636	7,622
Expense on amounts withheld	979	926	1,819	1,735
Interest expense	55	92	109	104
Total expenses	104,895	65,781	205,314	128,168
Income before income taxes	11,535	11,109	25,473	25,562
Provision for income taxes	3,332	3,491	7,742	7,358
Net income	8,203	7,618	17,731	18,204
Net income per share - basic	$ 0.42	$ 0.39	$ 0.92	$ 0.94
Net income per share - diluted	$ 0.42	$ 0.39	$ 0.91	$ 0.94
Weighted average of common shares outstanding - basic	19,368	19,343	19,367	19,336
Weighted average of common shares outstanding - diluted	19,482	19,456	19,479	19,424
Cash dividends per common share	$ 0.09	$ 0.08	$ 0.18	$ 0.16
Supplemental disclosure of Net realized gains on investments
Net realized gains before impairment losses	1,316	1,770	2,516	2,652
Total losses on securities with impairment charges
Non-credit portion in other comprehensive income		(101)		(101)
Net impairment charges recognized in earnings		(101)		(101)
Net realized gains on investments	$ 1,316	$ 1,669	$ 2,516	$ 2,551