Prepayments, Deposits, and Other Current Assets - Schedule Of Prepayments, Deposits, and Other Current Assets (Details) - USD ($) $ in Thousands		Oct. 02, 2020	Jan. 03, 2020
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepayments and deposits		$ 3,534	$ 3,031
Prepaid insurance		242	1,488
Consumption tax receivable		1,059	875
Value added tax (VAT) receivable		1,492	713
Other	[1]	1,041	453
Total prepayments, deposits and other current assets		$ 7,368	$ 6,560

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