Intangible Assets - Components of Purchased Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Components of purchased intangible assets
Annual Amortization	$ 163	$ 16
Gross Carrying Value	3,140	840
Accumulated Amortization	935	772
Net Carrying Value	$ 2,205	$ 68
Customer Relations
Components of purchased intangible assets
Useful Lives	15 years	15 years
Useful Lives Remaining	5 years 29 days	4 years 3 months
Annual Amortization	$ 28	$ 16
Gross Carrying Value	340	240
Accumulated Amortization	200	172
Net Carrying Value	$ 140	68
Developed technology
Components of purchased intangible assets
Useful Lives	7 years
Useful Lives Remaining	6 years 2 months 1 day
Annual Amortization	$ 107
Gross Carrying Value	900
Accumulated Amortization	107
Net Carrying Value	$ 793
In-process R&D
Components of purchased intangible assets
Useful Lives	7 years
Gross Carrying Value	$ 1,000
Net Carrying Value	$ 1,000
Trade names
Components of purchased intangible assets
Useful Lives	9 years
Useful Lives Remaining	8 years 2 months 1 day
Annual Amortization	$ 28
Gross Carrying Value	300
Accumulated Amortization	28
Net Carrying Value	272
Patents
Components of purchased intangible assets
Gross Carrying Value	600	600
Accumulated Amortization	$ 600	$ 600