Revenue Recognition (Net Revenue by Geography) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	$ 31,768	$ 21,503
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	23,701	17,788
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	1,264	1,187
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	3,468	2,200
All Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	$ 3,335	$ 328