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Fair Value Measurement - Financial Assets and Liabilities Measured and Recognized at Fair Value on a Recurring Basis (Details) - Fair Value Measurements Recurring - Money Market Funds - USD ($)
$ in Thousands
Jan. 02, 2021
Dec. 28, 2019
Assets:    
Assets, Fair Value Measurements $ 11,051 $ 10,711
Level 1    
Assets:    
Assets, Fair Value Measurements $ 11,051 $ 10,711