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Note 1 - Summary of Significant Accounting Policies - Reported Share-based Compensation in Consolidated Financial Statements (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 29, 2024 | Jul. 01, 2023 | Jun. 29, 2024 | Jul. 01, 2023
Share-based compensation of continuing operations | $ 5,583 | $ 4,432 | $ 10,211 | $ 8,346
Income tax effect | 8 | (62) | 211 | (2,838)
Total share-based compensation, net | 5,591 | 4,370 | 10,422 | 5,508
Cost of Sales [Member] |  |  |  |
Share-based compensation of continuing operations | 262 | 216 | 489 | 396
Research and Development Expense [Member] |  |  |  |
Share-based compensation of continuing operations | 1,001 | 819 | 1,835 | 1,685
Selling, General and Administrative Expenses [Member] |  |  |  |
Share-based compensation of continuing operations | $ 4,320 | $ 3,397 | $ 7,887 | $ 6,265

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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