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Note 4 - Capital Stock (Tables) | 6 Months Ended
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Jun. 30, 2024
Notes Tables |
Schedule of Common Stock Outstanding Roll Forward [Table Text Block] |
Issued Shares as of December 31, 2022 |  |  | 2,071 |
Issuances from Preferred Stock conversions |  |  | 14,102 |
Issuances related to warrant exercises |  |  | 746 |
Issuances related to stock compensation |  |  | 180 |
Common shares exchanged for prepaid warrants |  |  | (407 | )
Issued Shares as of December 31, 2023 |  |  | 16,692 |
Issuances from Preferred Stock conversions |  |  | 11,558 |
Issued Shares as of June 30, 2024 |  |  | 28,250 |
Less Treasury Shares: |  |  | (8 | )
Outstanding Shares as of June 30, 2024 |  |  | 28,242 |
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] |
Issue Date |  | Warrants Outstanding |  |  | Exercise Price |  | Expiration Date
Q2 2021 |  |  | 750 |  |  | $ | 66.00 |  | Q4 2024
Q1 2023 |  |  | 4,136,850 |  |  | $ | 1.71 |  | Q3 2028
Q2 2024 |  |  | 963,745 |  |  | $ | 1.71 |  | Q4 2029
|  |  | 5,101,345 |  |  |  |  |  |
|  | Outstanding |
|  | Number of Warrants |  |  | Weighted Average Exercise Price |
Warrants outstanding as of December 31, 2022 |  |  | 343,099 |  |  | $ | — |
Granted |  |  | 4,543,626 |  |  |  | 1.56 |
Exercised |  |  | (746,027 | ) |  |  | 0.78 |
Expired |  |  | (2,848 | ) |  |  | 70.25 |
Warrants outstanding as of December 31, 2023 |  |  | 4,137,850 |  |  |  | 1.73 |
Granted |  |  | 963,745 |  |  |  | 1.71 |
Expired |  |  | (250 | ) |  |  | 60.00 |
Warrants outstanding as of June 30, 2024 (1) |  |  | 5,101,345 |  |  | $ | 1.71 |
(1) Of the outstanding shares at June 30, 2024, 4,137,600 were exercisable. |  |  |  |  |  |  |  |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1 + Details
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