Investments (Tables)

12 Months Ended

Dec. 28, 2024

Amortized Cost and Fair Value of Available-for-Sale Investments

The amortized cost and fair values of available-for-sale investments are as follows at December 28, 2024 and December 30, 2023 (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
December 28, 2024
Money market investments	$	13,473	$	—	$	—	$	13,473
Asset-backed securities		26,785		25		1,770		25,040
Corporate bonds, commercial paper and direct obligations of government agencies		107,180		198		2,026		105,352
Total	$	147,438	$	223	$	3,796	$	143,865
December 30, 2023
Money market investments	$	16,832	$	—	$	—	$	16,832
Asset-backed securities		16,543		—		2,236		14,307
Corporate bonds, commercial paper and direct obligations of government agencies		118,481		279		4,384		114,376
U.S. Treasury obligations		6,287		2		43		6,246
Total	$	158,143	$	281	$	6,663	$	151,761

Schedule of Unrealized Loss on Available-for-Sale Investments

For those available-for-sale investments with unrealized losses at December 28, 2024 and December 30, 2023, the following table summarizes the duration of the unrealized loss (in thousands):

	Less than 12 months				12 months or longer				Total
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
December 28, 2024
Asset-backed securities	$	9,663	$	37	$	12,596	$	1,733	$	22,259	$	1,770
Corporate bonds, commercial paper, and direct obligations of government agencies		18,409		169		59,609		1,857		78,018		2,026
Total	$	28,072	$	206	$	72,205	$	3,590	$	100,277	$	3,796
December 30, 2023
Asset-backed securities	$	—	$	—	$	14,307	$	2,236	$	14,307	$	2,236
Corporate bonds, commercial paper, and direct obligations of government agencies		3,506		42		86,841		4,342		90,347		4,384
U.S. Treasury obligations		—		—		2,305		43		2,305		43
Total	$	3,506	$	42	$	103,453	$	6,621	$	106,959	$	6,663