Significant Customers, Geographic Areas, And Business Segments (Schedule Of Long-lived Assets Attributable To Each Geographic Area's Operations) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Total long-lived assets	$ 1,272	$ 1,719
United States [Member]
Property, Plant and Equipment [Line Items]
Total long-lived assets	816	929
Europe [Member]
Property, Plant and Equipment [Line Items]
Total long-lived assets	23	5
Asia And Other [Member]
Property, Plant and Equipment [Line Items]
Total long-lived assets	$ 433	$ 785