Income Taxes (Schedule Of Provision (Benefit) For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 0	$ (164)
State	31	30
Foreign	350	27
Total current	381	(107)
Deferred:
Federal	427	(744)
State	0	1
Foreign	(56)	446
Total deferred	371	(297)
Total provision (benefit) for income taxes	$ 752	$ (404)