Composition Of Certain Financial Statement Captions - Inventories (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Balance Sheet Disclosures [Abstract]
Raw materials	$ 0	[1]	$ 842	[1]
Work in process	0	[1]	145	[1]
Finished goods	0	[1]	520	[1]
Inventories, total	$ 0		$ 1,507

[1] Inventories at June 30, 2013 relating to the Company's DigitalOptics operations in Charlotte, North Carolina are included in discontinued operations. See Note 6 – "Discontinued Operations," for additional details.