Equity (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of Accumulated Other Comprehensive Income (Loss) [Abstract]
Unrealized appreciation on securities, before tax	$ 53	$ 0	$ 85	$ 0
Tax expense	(20)	0	(32)	0
Unrealized appreciation on securities, net of tax	$ 33	$ 0	$ 53	$ 0