Geographic Information (Geographical Distribution Of Long-Lived Assets, Net) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 7,547	$ 7,175
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	5,834	5,407
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	1,205	1,254
All Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 508	$ 514