Balance Sheet Components - Property and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2022	Oct. 03, 2021	Oct. 02, 2022	Oct. 03, 2021	Jan. 02, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 7,660		$ 7,660		$ 9,010
Less: accumulated depreciation and amortization	(3,665)		(3,665)		(5,779)
Property and equipment, net	3,995		3,995		3,231
Depreciation and amortization			2,980	$ 2,116
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	3,686		$ 3,686		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	2,127		$ 2,127		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	1,765		$ 1,765		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	82		$ 82		$ 107
Property and equipment, net
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 700	$ 300	$ 1,700	$ 900