Income Taxes (Schedule Of Components Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Abstract]
Federal
State	$ 1	$ 1	$ 1
Foreign	793	1,489	2,032
Total current	$ 794	$ 1,490	$ 2,033
Federal
State
Foreign	$ 13	$ (321)	$ 209
Total deferred	13	(321)	209
Provision for income tax	$ 807	$ 1,169	$ 2,242