Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
REVENUE:
Gross premiums written	$ 708,156	$ 569,736	$ 436,753
Increase in gross unearned premiums	(41,327)	(65,521)	(36,058)
Gross premiums earned	666,829	504,215	400,695
Ceded Premiums Earned	(209,898)	(168,257)	(135,845)
Net premiums earned	456,931	335,958	264,850
Net investment income	10,679	9,212	6,795
Net realized gains (losses)	547	827	(20)
Other revenue	18,960	11,572	8,605
Total revenue	487,117	357,569	280,230
EXPENSES:
Losses and loss adjustment expenses	298,353	183,108	118,077
Deferred Policy Acquisition Cost, Amortization Expense	117,658	87,401	65,657
Operating Expenses	20,524	15,316	11,746
General and Administrative Expense	42,956	29,852	20,007
Interest Expense	723	326	410
Total expenses	480,214	316,003	215,897
Income before other income	6,903	41,566	64,333
Other Nonoperating Income (Expense)	100	294	77
Income before income taxes	7,003	41,860	64,410
Provision for income taxes	1,305	14,502	23,397
Net income	5,698	27,358	41,013
OTHER COMPREHENSIVE INCOME:
Change in net unrealized gain on investments	(629)	(3,070)	6,367
Reclassification adjustment for net realized investment gains	(547)	(827)	20
Income tax expense related to items of other comprehensive income	378	1,506	(2,468)
Total comprehensive income	$ 4,900	$ 24,967	$ 44,932
Weighted average shares outstanding
Basic	21,417,486	21,218,233	19,933,652
Diluted	21,614,443	21,452,540	20,045,907
Earnings per share
Earnings Per Share, Basic	$ 0.27	$ 1.29	$ 2.06
Earnings Per Share, Diluted	0.26	1.28	2.05
Common Stock, Dividends, Per Share, Declared	$ 0.23	$ 0.20	$ 0.16