Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 02, 2021	Dec. 28, 2019
Current:
State	$ 12	$ 19
Foreign	11	27
Total	23	46
Deferred:
Federal	1	1
State	2	1
Total	3	2
Provision for income taxes	$ 26	$ 48

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