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Note 14 - Common Stock Warrants - Outstanding Warrants (Details) - $ / shares |  | 12 Months Ended
--- | --- | ---
Jul. 26, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Outstanding warrants (in shares) |  | 210,946,000 | 65,886,000
Outstanding warrants, weighted-average exercise price (in dollars per share) |  | $ 50.96 | $ 269.54
Warrants granted (in shares) |  | 10,730,589,000 | 217,312,000
Warrants granted, weighted average exercise price (in dollars per share) |  | $ 0.69 | $ 33.28
Warrants exercised (in shares) |  | (90,381,000) | (72,252,000)
Warrants exercised, weighted-average exercise price (in dollars per share) |  | $ 2.5 | $ 8.75
Warrants expired (in shares) |  |  | 0
Warrants expired, weighted average exercise price (in dollars per share) |  |  | $ 0
Warrants expired (in shares) |  | (14,879,000) |
Warrants expired, weighted-average exercise price (in dollars per share) |  | $ 88.87 |
Outstanding warrants (in shares) |  | 10,836,275,000 | 210,946,000
Outstanding warrants, weighted-average exercise price (in dollars per share) |  | $ 1.41 | $ 50.96
Prefunded Warrants 2024 Public Offering [Member] |  |  |
Warrants granted (in shares) | 2,041,814 | 2,041,814,000 |
Warrants granted, weighted average exercise price (in dollars per share) |  | $ 0.01 |
Warrants expired (in shares) |  | (2,041,814,000) |
Warrants expired, weighted average exercise price (in dollars per share) |  | $ 0.01 |
Outstanding warrants, weighted-average exercise price (in dollars per share) | $ 0.01 |  |

X
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
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