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Note 9 - Stock-based Compensation (Tables) | 9 Months Ended
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Oct. 01, 2022
Notes Tables |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | October 1, |  |  | October 2, |  |  | October 1, |  |  | October 2, |
(In thousands) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Cost of revenue |  | $ | 880 |  |  | $ | 653 |  |  | $ | 2,705 |  |  | $ | 2,144 |
Research and development |  |  | 4,925 |  |  |  | 3,463 |  |  |  | 14,461 |  |  |  | 10,199 |
Selling, general, and administrative |  |  | 8,153 |  |  |  | 6,134 |  |  |  | 24,041 |  |  |  | 20,281 |
Total stock-based compensation |  | $ | 13,958 |  |  | $ | 10,250 |  |  | $ | 41,207 |  |  | $ | 32,624 |
Share-Based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] |
(Shares in thousands) |  | Total |
Balance, January 1, 2022 |  |  | 1,246 |
Granted |  |  | 183 |
Effect of vesting multiplier |  |  | 642 |
Vested |  |  | (1,083 | )
Balance, October 1, 2022 |  |  | 988 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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