Investments (Tables)

3 Months Ended

Mar. 30, 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 March 30, 2024 and December 30, 2023 (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
March 30, 2024
Money market investments	$	8,303	$	—	$	—	$	8,303
Asset-backed securities		18,019		2		2,062		15,959
Corporate bonds and direct obligations of government agencies		123,879		143		4,012		120,010
U.S. Treasury obligations		3,832		—		25		3,807
Total	$	154,033	$	145	$	6,099	$	148,079
December 30, 2023
Money market investments	$	16,832	$	—	$	—	$	16,832
Asset-backed securities		16,543		—		2,236		14,307
Corporate bonds 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 March 30, 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
March 30, 2024
Asset-backed securities	$	—	$	—	$	13,975	$	2,062	$	13,975	$	2,062
Corporate bonds and direct obligations of government agencies		22,850		135		82,114		3,877		104,964		4,012
U.S. Treasury obligations		—		—		2,323		25		2,323		25
Total	$	22,850	$	135	$	98,412	$	5,964	$	121,262	$	6,099
December 30, 2023
Asset-backed securities	$	—	$	—	$	14,307	$	2,236	$	14,307	$	2,236
Corporate bonds 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