Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Fixed-maturity securities, available-for-sale, at fair value	$ 35,117	$ 35,953
Equity securities, available-for-sale, at fair value	9,944	8,876
Other investments	16,059	16,087
Total investments	61,120	60,916
Cash and cash equivalents	279,327	230,214
Accrued interest and dividends receivable	272	375
Premiums and reinsurance receivable	17,125	10,642
Prepaid reinsurance premiums	16,035	9,112
Deferred policy acquisition costs	11,822	10,032
Property and equipment, net	12,981	10,853
Deferred income taxes	4,921	3,848
Other assets	3,957	2,296
Total assets	407,560	338,288
Liabilities and Stockholders' Equity
Losses and loss adjustment expenses	41,751	41,168
Unearned premiums	140,951	154,249
Advance premiums	15,905	4,029
Assumed reinsurance balances payable	991	1,377
Accrued expenses	6,727	3,041
Dividends payable	37	42
Income taxes payable	13,802	8,813
Long-term debt	40,250
Other liabilities	7,418	4,316
Total liabilities	267,832	217,035
Stockholders' equity:
Preferred stock
Common stock, (no par value, 40,000,000 shares authorized, 10,907,244 and 10,877,537 shares issued and outstanding in 2013 and 2012, respectively)
Additional paid-in capital	64,286	63,875
Retained income	73,657	55,758
Accumulated other comprehensive income	1,785	1,620
Total stockholders' equity	139,728	121,253
Total liabilities and stockholders' equity	407,560	338,288
7% Series A Cumulative Convertible Preferred Stock
Stockholders' equity:
Preferred stock