The following table summarizes the Company’s available-for-sale investment securities as of March 27, 2022:

	Amortized Cost		Unrealized Losses			Fair Value
U.S. Corporate Bonds and U.S. Dollar Denominated Foreign Bonds	$	66,270	$	(1,371	)	$	64,899
Commercial Paper		1,000		—			1,000
U.S. Treasury		1,177		(25	)		1,152
Total	$	68,447	$	(1,396	)	$	67,051

The following table summarizes the Company’s available-for-sale investment securities as of December 26, 2021:

	Amortized Cost		Unrealized Losses			Fair Value
U.S. Corporate Bonds and U.S. Dollar Denominated Foreign Bonds	$	64,816	$	(364	)	$	64,452
Commercial Paper		2,999		—			2,999
U.S. Treasury		1,177		(7	)		1,170
Total	$	68,992	$	(371	)	$	68,621

The securities incurred unrealized losses of $1,026 and related tax benefit of $242 for the 13-weeks ended March 27, 2022. The unrealized losses in our U.S. corporate bond portfolio consist of losses on 89 diversified issuances with credit ratings ranging from BBB to AAA. There are no individual bonds with unrealized losses exceeding $65 and only three issuances have been in a loss position greater than 12 months with aggregate unrealized losses of $124.

The decline in fair value has resulted primarily from rising interest rates over the last 12 months and we do not believe there has been any significant decline in the creditworthiness of the issuers. We also do not believe it is likely that the bonds will be called early given the current interest rate environment and we do not have current liquidity needs that would necessitate a sale of the investments prior to maturity. Therefore, we have not recorded an allowance for credit losses on the investment securities as of March 27, 2022.

Actual maturities may differ from contractual maturities because some borrowers have the right to call or prepay obligations with or without call or prepayment penalties. Contractual maturities of investment securities as of March 27, 2022 are as follows:

	Amortized Cost		Fair Value
Due within one year	$	20,640	$	20,541
Due in 1-5 years		47,807		46,510
Total available-for-sale	$	68,447	$	67,051

The following tables present information about the Company’s financial assets measured at fair value on a recurring basis for the periods presented:

	Fair Value Measurements as of March 27, 2022, Using:
	Level 1		Level 2		Level 3		Total
Assets:
U.S. Corporate Bonds and U.S. Dollar Denominated Foreign Bonds	$	—	$	64,899	$	—	$	64,899
Commercial Paper		—		1,000		—		1,000
Money Market		19,431		—		—		19,431
U.S. Treasury		—		1,152		—		1,152
Total assets measured at fair value	$	19,431	$	67,051	$	—	$	86,482

	Fair Value Measurements as of December 26, 2021, Using:
	Level 1		Level 2		Level 3		Total
Assets:
U.S. Corporate Bonds and U.S. Dollar Denominated Foreign Bonds	$	—	$	64,452	$	—	$	64,452
Commercial Paper		—		2,999		—		2,999
Money Market		20,101		—		—		20,101
U.S. Treasury		—		1,170		—		1,170
Total assets measured at fair value	$	20,101	$	68,621	$	—	$	88,722