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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 28, 2024

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful Accounts

Activity related to our allowance for credit losses was as follows (in thousands):

			Fiscal Year Ended
			December 28, 2024						December 30, 2023						December 31, 2022
Balance at beginning of year			$	501					$	168					$	195
Charges (reversals) to costs and expenses			20						333						(27)
Write-offs			(517)						—						—
Balance at end of year			$	4					$	501					$	168

Schedules of Concentration of Risk, by Customer

The following customers represented 10% or more of our revenues:

			Fiscal Year Ended
			December 28, 2024						December 30, 2023						December 31, 2022
SK hynix Inc.			18.9		%				*						*
Intel Corporation			14.6		%				17.1		%				19.0		%

* Less than 10% of revenues.

Schedule of Product Warranty Liability Reconciliation

A reconciliation of the changes in our warranty liability is as follows (in thousands):

			Fiscal Year Ended
			December 28, 2024						December 30, 2023						December 31, 2022
Balance at beginning of year			$	3,177					$	4,199					$	2,805
Accruals			8,580						7,771						7,746
Settlements			(8,199)						(8,687)						(6,352)
Reduction - FRT divestiture			—						(106)						—
Balance at end of year			$	3,558					$	3,177					$	4,199

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The following table reconciles the shares used in calculating basic net income per share and diluted net income per share (in thousands):

			Fiscal Year Ended
			December 28, 2024						December 30, 2023						December 31, 2022
Weighted-average shares used in computing basic net income per share			77,340						77,370						77,578
Add potentially dilutive securities			1,097						789						623
Weighted-average shares used in computing basic and diluted net income per share			78,437						78,159						78,201

Schedule of Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive loss (“AOCL”) includes the following items, the impact of which has been excluded from earnings and reflected as components of stockholders' equity as shown below (in thousands):

			December 28, 2024						December 30, 2023
Unrealized losses on available-for-sale marketable securities and other investments			$	(295)					$	(727)
Translation adjustments			(11,429)						(5,568)
Unrealized gains on derivative instruments			884						2,243
Accumulated other comprehensive loss			$	(10,840)					$	(4,052)

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