Segment Information (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Net premiums earned	$ 117,569,122	$ 104,991,401	$ 232,260,913	$ 208,786,680
GAAP adjustments	(3,000)	(1,003,000)	(6,000)	(2,788,000)
GAAP premiums earned	117,569,000	104,992,000	232,261,000	208,787,000
Net investment income	4,919,288	5,420,992	10,009,010	10,651,136
Net realized investment gains	1,528,333	4,316,021	3,838,313	4,689,094
Other	3,283,000	2,325,000	6,539,000	4,511,000
Total revenues	127,299,190	117,054,498	252,647,352	228,637,940
Underwriting income (loss):
SAP underwriting loss	(9,972,000)	(14,519,000)	(10,254,000)	(17,384,000)
GAAP adjustments	3,572,000	1,495,000	4,519,000	430,000
GAAP underwriting income (loss)	(6,400,000)	(13,024,000)	(5,735,000)	(16,954,000)
Net investment income	4,919,000	5,421,000	10,009,000	10,651,000
Net realized investment gains	1,528,333	4,316,021	3,838,313	4,689,094
Other	2,068,000	1,215,000	3,851,000	2,139,000
Income before income taxes	2,115,082	(2,071,599)	11,962,816	524,536
Commercial Lines [Member]
Revenues:
Net premiums earned	42,946,000	37,039,000	83,783,000	71,943,000
Underwriting income (loss):
GAAP underwriting income (loss)	(157,000)	302,000	2,320,000	428,000
Personal Lines [Member]
Revenues:
Net premiums earned	74,626,000	68,956,000	148,484,000	139,632,000
Underwriting income (loss):
GAAP underwriting income (loss)	$ (9,815,000)	$ (14,821,000)	$ (12,574,000)	$ (17,812,000)