The carrying value of goodwill was $1.0 million as of both March 30, 2024 and December 30, 2023.

Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. The Company reviews goodwill for impairment on an annual basis or whenever events or changes in circumstances indicate the carrying value may not be recoverable. The Company performs an annual impairment test by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, income tax effects from any tax-deductible goodwill carrying amount of the reporting unit should be considered when measuring the goodwill impairment loss, if applicable. The Company has determined that it has a single reporting unit for purposes of performing its goodwill impairment test. As the Company uses the market approach to assess impairment, its common stock price is an important component of the fair value calculation. If the Company’s stock price continues to experience significant price and volume fluctuations, this will impact the fair value of the reporting unit and can lead to potential impairment in future periods. The Company performed its annual impairment test during the second quarter of fiscal year 2023 and determined that its goodwill was not impaired.

The following table summarizes the components of gross and net of intangible assets carrying amounts (in thousands):


	March 30, 2024							December 30, 2023
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Useful Lives Remaining	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Customer relations	$	340	$	267	$	73	3.27 Years	$	340	$	260	$	80
Developed technology		1,899		611		1,288	4.88 Years		1,899		543		1,356
Trade names		300		103		197	5.92 Years		300		94		206
Patents		600		600		—	Varies		600		600		—
	$	3,139	$	1,581	$	1,558		$	3,139	$	1,497	$	1,642

For the three months ended March 30, 2024 and April 1, 2023 amortization expense totaled $84 thousand and $83 thousand, respectively.

The amortization of developed technology was charged to research and development expense and the amortization of customer relations and trade names was charged to sales and marketing expense. Estimated future amortization expense for purchased intangible assets is as follows (in thousands):


Fiscal Year:
Remainder of 2024 (nine months)	$	251
2025		323
2026		319
2027		319
2028		200
Thereafter		146
Total	$	1,558