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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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