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Stockholders' Equity and Share-Based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 26, 2025 | Apr. 27, 2024 | Apr. 29, 2023
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | $ 2,944 | $ 2,090 | $ 2,027
Cost of sales |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | 613 | 452 | 441
Selling |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | 460 | 437 | 424
General and administrative |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | 1,577 | 745 | 735
Product design and development |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | 294 | 456 | 427
Stock options |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | 910 | 420 | 453
Restricted stock and stock units |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | 1,591 | 1,177 | 1,153
Employee stock purchase plans |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based payment arrangement, expense | $ 443 | $ 493 | $ 421

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