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Balance Sheet Components (Schedule of Intangibles, Net) (Details) - USD ($) $ in Thousands	Sep. 29, 2019	Dec. 31, 2018
Intangible Assets [Line Items]
Gross	$ 10,300	$ 10,600
Accumulated Amortization	(8,621)	(7,777)
Net	1,679	2,823
Technology
Intangible Assets [Line Items]
Gross	9,800	9,800
Accumulated Amortization	(8,196)	(7,165)
Net	1,604	2,635
Other
Intangible Assets [Line Items]
Gross	500	800
Accumulated Amortization	(425)	(612)
Net	$ 75	$ 188

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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