Balance Sheet Components - Property and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2022	Jul. 04, 2021	Jul. 03, 2022	Jul. 04, 2021	Jan. 02, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 7,297		$ 7,297		$ 9,010
Less: accumulated depreciation and amortization	(3,270)		(3,270)		(5,779)
Property and equipment, net	4,027		4,027		3,231
Depreciation and amortization			1,850	$ 1,421
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	3,380		$ 3,380		3,502
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)			3 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)			8 years
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,947		$ 1,947		3,278
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)			3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)			7 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	1,295		$ 1,295		2,123
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)			3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)			7 years
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	675		$ 675		$ 107
Property and equipment, net
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 600	$ 300	$ 1,000	$ 600