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BALANCE SHEET COMPONENTS - Allowance For Credit Loss and Sales Returns (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 02, 2022
Jan. 03, 2021
Allowance for credit losses    
Balance at Beginning of Period $ 3,768 $ 2,767
Charges (Releases) to Expense (1,973) 2,548
Deductions (855) (1,547)
Balance at End of Period 940 3,768
Allowance for sales returns    
Balance at Beginning of Period 359 501
Charges (Releases) to Expense (134) (142)
Deductions 0 0
Balance at End of Period $ 225 $ 359