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Note 14 - Net Loss Per Share - Antidilutive Securities Excluded from Computation (Details) - shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Antidilutive securities (in shares) | 7,597,217 | 6,801,671 | 7,597,217 | 6,801,671
Convertible Notes Payable [Member] |  |  |  |
Antidilutive securities (in shares) | 62,500 | 86,635 | 62,500 | 86,635
Common Stock Warrants [Member] |  |  |  |
Antidilutive securities (in shares) | 5,271,604 | 5,271,604 | 5,271,604 | 5,271,604
Share-Based Payment Arrangement, Option [Member] |  |  |  |
Antidilutive securities (in shares) | 1,896,044 | 1,074,318 | 1,896,044 | 1,074,318
Restricted Stock [Member] |  |  |  |
Antidilutive securities (in shares) | 37,441 | 39,486 | 37,441 | 39,486
Contingent Earnout Shares [Member] |  |  |  |
Antidilutive securities (in shares) | 329,628 | 329,628 | 329,628 | 329,628

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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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