Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities
Net income	$ 19,400	$ 16,169
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	241	222
Net amortization of investments	2,347	3,151
Deferred income taxes	5	264
Net realized (gains) losses on investments	(59)	31
Net unrealized (gains) losses on equity securities	(2,158)	390
Share-based compensation	565	18
Changes in operating assets and liabilities:
Premiums receivable, net	(11,832)	(12,564)
Accrued interest receivable	(720)	(697)
Deferred policy acquisition costs	(699)	(1,036)
Amounts held by others		(7,855)
Other assets	(998)	2,438
Reserves for loss and loss adjustment expenses	2,171	5,453
Unearned premiums	5,730	7,702
Reinsurance balances	824	(4,040)
Amounts held for others and policyholder deposits	871	402
Accounts payable and other liabilities	4,588	2,618
Net cash provided by operating activities	20,276	12,666
Investing activities
Purchases of investments held-to-maturity	(26,174)	(17,925)
Purchases of investments available-for-sale	(10,394)	(28,510)
Purchases of equity securities	(807)
Purchases of short-term investments	(64,320)	(28,688)
Proceeds from maturities of investments held-to-maturity	40,578	19,127
Proceeds from sales and maturities of investments available-for-sale	26,365	25,004
Proceeds from sales and maturities of short-term investments	13,959	4,000
Purchases of property and equipment	(22)	(868)
Net cash used in investing activities	(20,815)	(27,860)
Financing activities
Proceeds from stock option exercises	20	68
Finance lease purchases	(12)
Dividends to shareholders	(4,918)	(4,361)
Net cash used in financing activities	(4,910)	(4,293)
Change in cash and cash equivalents	(5,449)	(19,487)
Cash and cash equivalents at beginning of period	40,344	55,559
Cash and cash equivalents at end of period	$ 34,895	$ 36,072