Income Taxes - Valuation Allowance for Deferred Tax Asset (Details) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 11,524	$ 10,260	$ 7,153
Charged to expenses	(221)	1,264	98
Adjustments to balance sheet	0	0	3,009
Balance at end of period	$ 11,303	$ 11,524	$ 10,260