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Commitments and Contingencies - Additional Information (Details) - USD ($)
Jun. 28, 2020
Dec. 29, 2019
Wafer and finished goods inventory    
Purchase Commitment Excluding Longterm Commitment [Line Items]    
Outstanding commitment for purchases $ 35,000 $ 57,000
Other goods and services    
Purchase Commitment Excluding Longterm Commitment [Line Items]    
Total outstanding purchase obligations $ 817,000