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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. 25, 2022 | Jun. 26, 2021 | Jun. 25, 2022 | Jun. 26, 2021
Share-based compensation of continuing operations | $ 3,933 | $ 3,506 | $ 7,355 | $ 7,029
Income tax benefit | (836) | (180) | (2,462) | (414)
Total share-based compensation, net | 3,097 | 3,326 | 4,893 | 6,615
Cost of Sales [Member] |  |  |  |
Share-based compensation of continuing operations | 172 | 191 | 317 | 453
Research and Development Expense [Member] |  |  |  |
Share-based compensation of continuing operations | 826 | 763 | 1,578 | 1,544
Selling, General and Administrative Expenses [Member] |  |  |  |
Share-based compensation of continuing operations | $ 2,935 | $ 2,552 | $ 5,460 | $ 5,032

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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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