Segment Information And Geographic Data (Long-Lived Assets By Operating Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Long-lived assets	$ 48,098	$ 41,634
China [Member]
Segment Reporting Information [Line Items]
Long-lived assets	46,315	41,092
Rest Of The World (Including The U.S. And Hong Kong) [Member]
Segment Reporting Information [Line Items]
Long-lived assets	$ 1,783	$ 542