Intangible Assets

12 Months Ended

Dec. 29, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

7. Intangible Assets

The components of our purchased intangible assets as of December 29, 2018 are as follows (in thousands):

	Useful Lives	FY 2018 Annual Amortization		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Useful Lives Remaining
Customer relations	15 Years	$	16	$	240	$	140	$	100	6.25Years
Patents	Varies		—		600		600		—	Varies
		$	16	$	840	$	740	$	100

The components of our purchased intangible assets as of December 30, 2017 are as follows (in thousands):

	Useful Lives	FY 2017 Annual Amortization		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Useful Lives Remaining
Customer relations	15 Years	$	16	$	240	$	124	$	116	7.25 Years
Patents	Varies		—		600		600		—	Varies
		$	16	$	840	$	724	$	116

Aggregate amortization expense for each of the fiscal years 2018 and 2017 was $16 thousand. The amortization of customer relations was charged to sales and marketing expense and the amortization of patents was charged to cost of revenues.

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

Fiscal Year:
2019	$	16
2020		16
2021		16
2022		16
2023		16
Thereafter		20
Total	$	100