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Note 9 - Stock-based Compensation (Tables) | 3 Months Ended
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Mar. 30, 2024
Notes Tables |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended |
|  | March 30, |  |  | April 1, |
(In thousands) |  | 2024 |  |  | 2023 |
Cost of revenue |  | $ | 855 |  |  | $ | 953 |
Research and development |  |  | 8,098 |  |  |  | 5,339 |
Selling, general, and administrative |  |  | 9,541 |  |  |  | 7,963 |
Total stock-based compensation |  | $ | 18,494 |  |  | $ | 14,255 |
Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] |
(Shares in thousands) |  | Total |
Balance, December 30, 2023 |  |  | 852 |
Granted |  |  | 194 |
Effect of vesting multiplier |  |  | 284 |
Vested |  |  | (541 | )
Cancelled |  |  | (5 | )
Balance, March 30, 2024 |  |  | 784 |

X
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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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