Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements of Operations [Abstract]
Gross premiums written	$ 173,219	$ 162,056	$ 326,724	$ 297,168
Ceded premiums written	(83,373)	(61,162)	(145,445)	(107,755)
Net premiums written	89,846	100,894	181,279	189,413
Change in unearned premiums	1,132	(10,187)	1,646	(9,483)
Net premiums earned	90,978	90,707	182,925	179,930
Investment income, net of expenses	4,406	4,587	8,846	9,066
Investment gains (losses), net	533	(3,479)	(4,302)	(1,419)
Finance charges	1,161	936	2,201	1,989
Commission and fees	1,032	653	1,735	725
Other income	15	71	61	132
Total revenues	98,125	93,475	191,466	190,423
Losses and loss adjustment expenses	63,648	70,704	127,323	132,546
Other operating expenses	26,360	25,879	53,573	53,374
Interest expense	1,128	1,193	2,155	2,349
Amortization of intangible assets	617	617	1,234	1,234
Total expenses	91,753	98,393	184,285	189,503
Income (loss) before tax	6,372	(4,918)	7,181	920
Income tax expense (benefit)	1,282	(1,568)	1,444	284
Net income (loss)	$ 5,090	$ (3,350)	$ 5,737	$ 636
Net income (loss) per share:
Basic	$ 0.28	$ (0.18)	$ 0.32	$ 0.03
Diluted	$ 0.28	$ (0.18)	$ 0.31	$ 0.03