Balance Sheet Details - Property Plant & Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Buildings and Land Gross	$ 2,584	$ 2,584
Machinery and Equipment, Gross	26,803	23,493
Furniture and Fixtures, Gross	3,036	2,699
Computer Equipments And Software Gross	5,682	5,204
Leasehold Improvements, Gross	8,952	8,116
Property, Plant and Equipment, Gross	47,057	42,096
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(31,966)	(30,238)
Property, Plant and Equipment, Net	$ 15,091	$ 11,858