Short Duration Contracts (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Short Duration Contracts [Abstract]
Liability for Claims and Claims Adjustment Expense	$ 444	$ 427	$ 543	$ 514
Reinsurance Recoverables, Including Reinsurance Premium Paid	0	0	0	0
Liability for Unpaid Claims and Claims Adjustment Expense, Net	444	427	$ 543	$ 514
Current Year Claims and Claims Adjustment Expense	1,046	1,065
Prior Year Claims and Claims Adjustment Expense	(10)	(118)
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims	1,036	947
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year	758	769
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years	377	265
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid	$ 1,135	$ 1,034