Segment and Geographic Information (Schedule Of Long-Lived Assets By Geographical Area) (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
---|---|---|
Segment Reporting Information [Line Items] | ||
Total | $ 64,879 | $ 18,727 |
United States | ||
Segment Reporting Information [Line Items] | ||
Total | 64,408 | 18,228 |
China | ||
Segment Reporting Information [Line Items] | ||
Total | $ 471 | $ 499 |