Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Investments available-for-sale:
Fixed maturity securities at fair value	$ 818,284	$ 750,250
Short-term investments, at fair value	34,810	60,207
Cash and cash equivalents	28,579	38,307
Accrued investment income	6,828	7,174
Premiums receivable	46,584	32,470
Ceded unearned premiums	25,104	24,380
Reinsurance recoverables	190,844	198,014
Deferred acquisition costs	24,561	22,142
Other assets	50,220	52,064
Liabilities:
Unpaid losses and loss adjustment expenses	667,644	649,641
Unearned premiums	142,624	128,981
Ceded premiums payable	15,059	11,496
Funds held	62,020	55,917
Other liabilities	14,554	17,501
Shareholders' equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	10,385,419	10,386,519
Common stock, shares outstanding	10,385,419	10,386,519
Variable Interest Entity
Investments available-for-sale:
Fixed maturity securities at fair value	5,987	5,419
Short-term investments, at fair value	2,145	3,083
Cash and cash equivalents	1,053	759
Accrued investment income	57	54
Premiums receivable	1,022	1,116
Ceded unearned premiums	230	286
Reinsurance recoverables	2,393	4,291
Deferred acquisition costs	(533)	(38)
Other assets	1,191	0
Liabilities:
Unpaid losses and loss adjustment expenses	8,336	9,710
Unearned premiums	845	945
Ceded premiums payable	440	434
Funds held	181	248
Other liabilities	$ 0	$ 427