Income Taxes (Income Tax Benefit (Expense) Attributable To The Operating Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal	$ 0	$ 0
State	0	0
Foreign	62	0
Deferred:
Federal	49	0
State	0	0
Foreign	0	0
Deferred Federal, State and Local, Tax Expense (Benefit), Total	111	0
Discontinued Operations [Member]
Current:
Federal	11	0
State	1	0
Foreign	0	0
Deferred:
Federal	0	0
State	0	0
Foreign	0	0
Deferred Federal, State and Local, Tax Expense (Benefit), Total	$ 12	$ 0