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Note 9 - Stock-based Compensation (Tables) | 9 Months Ended
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Sep. 27, 2025
Notes Tables |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 27, |  |  | September 28, |  |  | September 27, |  |  | September 28, |
(In thousands) |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Cost of revenue |  | $ | 1,961 |  |  | $ | (62 | ) |  | $ | 4,203 |  |  | $ | 1,593 |
Research and development |  |  | 15,103 |  |  |  | 7,995 |  |  |  | 34,977 |  |  |  | 21,958 |
Selling, general, and administrative |  |  | 18,710 |  |  |  | 8,665 |  |  |  | 41,053 |  |  |  | 14,760 |
Total stock-based compensation |  | $ | 35,774 |  |  | $ | 16,598 |  |  | $ | 80,233 |  |  | $ | 38,311 |
Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] |
(Shares in thousands) |  | Total |
Balance, December 28, 2024 |  |  | 1,593 |
Granted |  |  | 799 |
Effect of vesting multiplier |  |  | 19 |
Vested |  |  | (101 | )
Canceled |  |  | (223 | )
Balance, September 27, 2025 |  |  | 2,087 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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