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Note 6 - Earnings (Loss) Per Share - Potentially Dilutive Securities Excluded from Diluted Net Income (Loss) per Share (Details) - shares shares in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Employee stock options (in shares) | 7,361 | 7,245 | 7,807 | 5,560
Share-Based Payment Arrangement, Option [Member] |  |  |  |
Employee stock options (in shares) | 0 | 8 | 0 | 0
Restricted Stock Units (RSUs) [Member] |  |  |  |
Employee stock options (in shares) | 2,097 | 2,650 | 2,543 | 973
Convertible Debt Securities [Member] |  |  |  |
Employee stock options (in shares) | 5,264 | 4,587 | 5,264 | 4,587

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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