Balance Sheet Details Property Plant & Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Balance Sheet Details [Abstract]
Buildings and Land Gross	$ 5,024	$ 5,024
Machinery and Equipment, Gross	21,683	20,277
Furniture and Fixtures, Gross	3,414	3,387
Computer Equipments And Software Gross	5,304	5,819
Leasehold Improvements, Gross	7,884	7,774
Property, Plant and Equipment, Gross	43,309	42,281
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(30,963)	(29,343)
Property, Plant and Equipment, Net	12,346	12,938
Depreciation	3,951	$ 4,686	$ 4,150
Assets Held-for-sale, Long Lived, Fair Value Disclosure	$ 231