Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income	$ 636	$ 5,140
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	2,256	1,923
Deferred federal income taxes	(2,174)	(669)
Net realized losses	1,419	2,404
Share-based payments expense	46	228
Change in ceded unearned premiums	(11,156)	(9,516)
Change in premiums receivable	(18,091)	(13,683)
Change in accounts receivable	513	(11)
Change in deferred policy acquisition costs	(142)	(258)
Change in unpaid losses and loss adjustment expenses	23,791	(7,266)
Change in unearned premiums	20,639	20,360
Change in reinsurance recoverable	(16,613)	(10,578)
Change in reinsurance balances payable	7,690	11,314
Change in current federal income tax recoverable	2,154	1,519
Change in all other liabilities	(745)	1,167
Change in all other assets	2,161	260
Net cash provided by operating activities	12,384	2,334
Cash flows from investing activities:
Purchases of property and equipment	(1,231)	(690)
Net transfers from (into) restricted cash	3,869	(720)
Purchases of investment securities	(124,366)	(92,561)
Maturities, sales and redemptions of investment securities	111,440	73,876
Net cash used in investing activities	(10,288)	(20,095)
Cash flows from financing activities:
Proceeds from exercise of employee stock options	145
Purchase of treasury shares	(4,425)	(4,745)
Net cash used in financing activities	(4,280)	(4,745)
Decrease in cash and cash equivalents	(2,184)	(22,506)
Cash and cash equivalents at beginning of period	79,632	114,446
Cash and cash equivalents at end of period	77,448	91,940
Supplemental cash flow information:
Interest paid	2,324	2,254
Income taxes paid	304	1,486
Supplemental schedule of non-cash investing activities:
Change in receivable for securities related to investment disposals that settled after the balance sheet date	1,427	9,030
Change in payable for securities related to investment purchases that settled after the balance sheet date	$ (958)	$ 11,529