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Fair Value Measurements (Details) - USD ($) $ in Thousands	Jan. 25, 2025	Apr. 27, 2024
Assets
Total assets	$ 15,113	$ 19,502
Recurring basis
Assets
Marketable securities	12,519	18,243
Held-to-maturity investments	2,594	1,259
Total assets	15,113	19,502
Recurring basis | Level 1
Assets
Marketable securities	0	0
Held-to-maturity investments	2,594	1,259
Total assets	2,594	1,259
Recurring basis | Level 2
Assets
Marketable securities	2,549	7,996
Held-to-maturity investments	0	0
Total assets	2,549	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	9,970	10,247
Held-to-maturity investments	0	0
Total assets	$ 9,970	$ 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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