Balance Sheet Components - Property and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2023	Jul. 03, 2022	Jul. 02, 2023	Jul. 03, 2022	Jan. 01, 2023
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 8,864		$ 8,864		$ 8,377
Less: accumulated depreciation and amortization	(4,730)		(4,730)		(3,986)
Property and equipment, net	4,134		4,134		4,391
Depreciation and amortization			2,306	$ 1,850
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 3,939		$ 3,939		3,802
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)	3 years		3 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)	9 years		9 years
Equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 2,880		$ 2,880		2,659
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)	3 years		3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)	7 years		7 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 2,023		$ 2,023		1,880
Furniture and fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)	3 years		3 years
Furniture and fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Lives (in years)	7 years		7 years
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 22		$ 22		$ 36
Property and equipment, net
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 700	$ 600	$ 1,400	$ 1,000