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Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands | Apr. 03, 2020 | Jan. 03, 2020
--- | --- | ---
Long-lived intangible assets |  |
Long-lived intangible assets, Net | $ 287 | $ 296
Patents and licenses |  |
Long-lived intangible assets |  |
Long-lived intangible assets, Gross Carrying Amount | 9,352 | 9,353
Long-lived intangible assets, Accumulated Amortization | (9,065) | (9,057)
Long-lived intangible assets, Net | $ 287 | $ 296

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