Geographic And Customer Information (Geographical Distribution Of Long-Lived Assets, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 14,177	$ 13,551
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	12,539	12,215
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	1,460	1,263
Other Geographical [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 178	$ 73