Income Taxes (Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Abstract]
US - Current	$ 682	$ 1,283	$ 85
US - Deferred	12	(786)
Provision for US income taxes	694	497	85
Foreign - Current	1,257	3,094	1,898
Foreign - Deferred	(34)	969	(196)
Provision for foreign income taxes	1,223	4,063	1,702
Total provision for income taxes	$ 1,917	$ 4,560	$ 1,787