Intangible Assets

12 Months Ended

Jan. 02, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

7. Intangible Assets

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	4.25Years
Patents	Varies		—		600		600		—	Varies
		$	16	$	840	$	772	$	68

The components of our purchased intangible assets as of December 28, 2019 are as follows (in thousands):

	Useful Lives	FY 2019 Annual Amortization		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Useful Lives Remaining
Customer relations	15 Years	$	16	$	240	$	156	$	84	5.25 Years
Patents	Varies		—		600		600		—	Varies
		$	16	$	840	$	756	$	84

Aggregate amortization expense for each of the fiscal years 2020 and 2019 was $16 thousand. The amortization of customer relations was charged to sales and marketing expense.

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

Fiscal Year:
2021	$	16
2022		16
2023		16
2024		16
2025		4
Total	$	68