Schedule V (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Uncollectible Premium Liability, Beg. Balance	$ 384	$ 144	$ 132
Charged to Costs and Expenses	597	294	356
Deductions	(576)	(54)	(344)
Uncollectible Premium Liability, End. Balance	$ 405	$ 384	$ 144