Intangible Assets

12 Months Ended

Jan. 01, 2022

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

9. Intangible Assets

The components of our purchased intangible assets as of January 1, 2022 are as follows (in thousands):

	Useful Lives	FY 2021 Annual Amortization		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Useful Lives Remaining
Customer relations	15 Years	$	28	$	340	$	200	$	140	5.08 Years
Developed technology	7 Years		107		900		107		793	6.17 Years
Trade names	9 Years		28		300		28		272	8.17 Years
In-process R&D	7 Years		—		1,000		—		1,000	Not applicable
Patents	Varies		—		600		600		—	Varies
		$	163	$	3,140	$	935	$	2,205

The components of our purchased intangible assets as of January 2, 2021 are as follows (in thousands):

	Useful Lives	FY 2020 Annual Amortization		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Useful Lives Remaining
Customer relations	15 Years	$	16	$	240	$	172	$	68	4.25 Years
Patents	Varies		—		600		600		—	Varies
		$	16	$	840	$	772	$	68

Aggregate amortization expense for fiscal years 2021 and 2020 were $163 thousand and $16 thousand, respectively. The amortization of developed technology was charged to research and development expense and the customer relations and trade names were charged to sales and marketing expense.

Estimated future amortization expense for purchased intangible assets is as follows (in thousands):

Fiscal Year:
2022	$	192
2023		192
2024		192
2025		180
2026		176
Thereafter		273
Total	$	1,205