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Note 9 - Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Anti-dilutive securities (in shares) | 4,771,847 | 344,834
Stock options [Member] |  |
Anti-dilutive securities (in shares) | 50,674 | 44,276
Restricted Stock Units [Member] |  |
Anti-dilutive securities (in shares) | 2,952 | 28,339
Warrant [Member] |  |
Anti-dilutive securities (in shares) | 4,718,213 | 272,211
Series A Convertible Preferred Stock [Member] |  |
Anti-dilutive securities (in shares) | 8 | 8

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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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