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Fair Value Measurements (Details) - USD ($) $ in Thousands	Oct. 26, 2024	Apr. 27, 2024
Assets
Total assets	$ 15,195	$ 19,502
Recurring basis
Assets
Marketable securities	13,811	18,243
Held-to-maturity investments	1,384	1,259
Total assets	15,195	19,502
Recurring basis | Level 1
Assets
Marketable securities	0	0
Held-to-maturity investments	1,384	1,259
Total assets	1,384	1,259
Recurring basis | Level 2
Assets
Marketable securities	3,468	7,996
Held-to-maturity investments	0	0
Total assets	3,468	7,996
Recurring basis | Level 3
Assets
Marketable securities	0	0
Held-to-maturity investments	0	0
Total assets	0	0
Recurring basis | NAV
Assets
Marketable securities	10,343	10,247
Held-to-maturity investments	0	0
Total assets	$ 10,343	$ 10,247

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Amount of investment in marketable security.

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