Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 9,662	$ 4,817
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization expense	2,822	3,691
Deferred federal income taxes	(182)	(268)
Net realized losses (gains)	122	(9,723)
Share-based payments expense	87	245
Change in ceded unearned premiums	(17,001)	(9,320)
Change in premiums receivable	(11,315)	(11,066)
Change in accounts receivable	(372)	(99)
Change in deferred policy acquisition costs	1,921	(2,032)
Change in unpaid losses and loss adjustment expenses	32,112	46,832
Change in unearned premiums	19,881	28,865
Change in reinsurance recoverable	(28,619)	(9,223)
Change in reinsurance balances payable	12,049	4,532
Change in current federal income tax recoverable/payable	(1,407)	(443)
Change in all other liabilities	941	(6,777)
Change in all other assets	1,009	13,489
Net cash provided by operating activities	21,710	53,520
Cash flows from investing activities:
Purchases of property and equipment	(809)	(920)
Net transfers (into) from restricted cash	(4,692)	7
Purchases of investment securities	(108,753)	(139,791)
Maturities, sales and redemptions of investment securities	113,758	153,737
Net cash (used in) provided by investing activities	(496)	13,033
Cash flows from financing activities:
Activity under revolving credit facility, net	(1,473)
Proceeds from exercise of employee stock options	15
Purchase of treasury shares	(1,395)
Net cash used in financing activities	(2,853)
Increase in cash and cash equivalents	18,361	66,553
Cash and cash equivalents at beginning of period	141,666	85,145
Cash and cash equivalents at end of period	160,027	151,698
Supplemental cash flow information:
Interest paid	3,435	3,439
Income taxes paid	5,109	2,212
Supplemental schedule of non-cash investing activities:
Change in receivable for securities related to investment disposals that settled after the balance sheet date	1,505	16
Change in payable for securities related to investment purchases that settled after the balance sheet date	$ (9,880)	$ 6,380