Reinsurance - Effects of Reinsurance and Assumption Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Written premiums:
Direct	$ 21,600	$ 21,119
Assumed	3,793	85
Ceded	(3,343)	(7,538)
Net written premiums	22,050	13,666
Earned premiums:
Direct	22,241	19,301
Assumed	1,305	1,673
Ceded	(3,437)	(6,481)
Net earned premiums	20,109	14,493
Loss and loss adjustment expenses:
Direct	13,939	9,652
Assumed	909	794
Ceded	(2,149)	(1,876)
Net Loss and loss adjustment expenses	$ 12,699	$ 8,570