(Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at beginning of period, gross	$ 2,073
Paid related to:
Balance at end of period, gross	1,937	$ 2,594
Property, Liability and Casualty Insurance Product Line
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at beginning of period, gross	2,073	1,329
Less reinsurance recoverable related to unpaid loss and loss adjustment expenses	0	100
Balance at beginning of period, net	2,073	1,257
Incurred related to:
Current year	0	0
Prior years	708	1,647
Paid related to:
Current year	0	0
Prior years	(844)	(410)
Balance at beginning of period, net	1,937	2,494
Plus reinsurance recoverable related to unpaid loss and loss adjustment expenses	$ 0	$ 100	$ 0	$ 72