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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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