Prepayments, Deposits, and Other Current Assets - Schedule Of Prepayments, Deposits, and Other Current Assets (Details) - USD ($) $ in Thousands		Apr. 02, 2021	Jan. 01, 2021
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepayments and deposits		$ 3,625	$ 3,423
Prepaid insurance		1,980	2,677
Prepaid marketing		1,281	368
Consumption tax receivable		170	1,409
Value added tax (VAT) receivable		1,763	2,056
BVG (Swiss Pension) prepayment		808	2
Other	[1]	1,022	690
Total prepayments, deposits and other current assets		$ 10,649	$ 10,625

[1] No individual item in “other current assets” exceeds 5% of the total prepayments, deposits and other current assets.