Investments Available for Sale (Tables)

12 Months Ended

Dec. 27, 2024

Investments, Debt and Equity Securities [Abstract]

Summary of Investments Available for Sale and Related Fair Value Measurement

During 2022, the Company started to invest its cash in investments AFS, in accordance with its investment policy. Investments AFS and the related fair value measurement consisted of the following (dollars in thousands):

	December 27, 2024
										Fair Value Measurements
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value		Level 1		Level 2
Commercial paper	$	21,466	$	4	$	(2	)	$	21,468	$	—	$	21,468
Certificates of deposit		1,997		—		—			1,997		—		1,997
U.S. Treasury securities		11,356		3		(4	)		11,355		11,355		—
Corporate debt securities		51,527		14		(26	)		51,515		—		51,515
Total investments AFS	$	86,346	$	21	$	(32	)	$	86,335	$	11,355	$	74,980
	December 29, 2023
										Fair Value Measurements
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value		Level 1		Level 2
Commercial paper	$	7,720	$	9	$	—		$	7,729	$	—	$	7,729
Certificates of deposit		3,716		4		—			3,720		—		3,720
U.S. Treasury securities		23,036		3		(56	)		22,983		22,983		—
U.S. agency securities		3,423		—		(4	)		3,419		—		3,419
Corporate debt securities		11,538		12		(10	)		11,540		—		11,540
Total investments AFS	$	49,433	$	28	$	(70	)	$	49,391	$	22,983	$	26,408

Summary of Fair Value of Investments Available for Sale by Contractual Maturity

The following table shows the fair value of investments AFS by contractual maturity (dollars in thousands):

	As of December 27, 2024
	Within one year		After one year through five years		Total
Commercial paper	$	21,468	$	—	$	21,468
Certificates of deposit		1,997		—		1,997
U.S. Treasury securities		11,355		—		11,355
Corporate debt securities		51,515		—		51,515
Total investments AFS	$	86,335	$	—	$	86,335