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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 | 9 Months Ended
--- | --- | ---
Sep. 24, 2022 | Sep. 25, 2021 | Sep. 24, 2022 | Sep. 25, 2021
Share-based compensation of continuing operations | $ 3,740 | $ 3,714 | $ 11,095 | $ 10,743
Income tax benefit | (770) | (155) | (3,232) | (569)
Total share-based compensation, net | 2,970 | 3,559 | 7,863 | 10,174
Cost of Sales [Member] |  |  |  |
Share-based compensation of continuing operations | 161 | 239 | 478 | 692
Research and Development Expense [Member] |  |  |  |
Share-based compensation of continuing operations | 755 | 889 | 2,333 | 2,433
Selling, General and Administrative Expenses [Member] |  |  |  |
Share-based compensation of continuing operations | $ 2,824 | $ 2,586 | $ 8,284 | $ 7,618

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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