Reinsurance - Effects of Reinsurance and Assumption Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Written premiums:
Direct	$ 22,533	$ 21,510	$ 44,133	$ 42,629
Assumed	7,192	1,549	10,985	1,634
Ceded	(3,549)	(7,117)	(6,892)	(14,655)
Net written premiums	26,176	15,942	48,226	29,608
Earned premiums:
Direct	22,574	20,050	44,815	39,351
Assumed	2,684	2,137	3,989	3,810
Ceded	(3,583)	(7,072)	(7,020)	(13,553)
Net earned premiums	21,675	15,115	41,784	29,608
Losses and LAE:
Direct	13,905	10,622	27,844	20,544
Assumed	1,447	281	2,356	805
Ceded	(1,811)	(1,927)	(3,960)	(3,803)
Total net incurred losses and LAE	$ 13,541	$ 8,976	$ 26,240	$ 17,546