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Note 3 - Financial Instruments (Tables) | 6 Months Ended
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Jun. 30, 2024
Notes Tables |
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] |
|  | As of June 30, 2024 |
|  | Adjusted |  |  | Unrealized |  |  | Unrealized |  |  | Market |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
Level 1: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money Market Funds |  | $ | 1,406 |  |  |  | - |  |  | $ | - |  |  | $ | 1,406 |
Certificate of Deposits |  |  | 2,500 |  |  |  | - |  |  |  | - |  |  |  | 2,500 |
Total Financial Assets |  | $ | 3,906 |  |  | $ | - |  |  | $ | - |  |  | $ | 3,906 |
|  | As of December 31, 2023 |
|  | Adjusted |  |  | Unrealized |  |  | Unrealized |  |  | Market |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
Level 1: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money Market Funds |  |  | 1,793 |  |  |  | - |  |  |  | - |  |  |  | 1,793 |
Certificate of Deposits |  |  | 7,500 |  |  |  | - |  |  |  | - |  |  |  | 7,500 |
Total Financial Assets |  | $ | 9,293 |  |  | $ | - |  |  | $ | - |  |  | $ | 9,293 |
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] |
Level 3: |  | June 30, 2024 |  |  | December 31, 2023 |
Fair value at inception for December 31, 2023 or the beginning of the period for June 30, 2024 |  | $ | (19,703 | ) |  | $ | (7,717 | )
Change in fair value of warrant liabilities |  |  | 6,917 |  |  |  | (11,986 | )
Fair value as of period end |  | $ | (12,786 | ) |  | $ | (19,703 | )
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] |
|  | As of June 30, 2024 |  |  | As of December 31, 2023 |
Expected stock price volatility |  |  | 167 | % |  |  | 143 | %
Risk-free interest rate |  |  | 4.38 | % |  |  | 3.85 | %
Dividends yield |  |  | 0 | % |  |  | 0 | %
Expected life of warrants (years) |  |  | 4.00 |  |  |  | 4.50 |
Exercise price |  | $ | 1.45 |  |  | $ | 1.45 |

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- Definition Tabular disclosure of financial instrument measured at fair value on recurring or nonrecurring basis. Includes, but is not limited to, instrument classified in shareholders' equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 + Details
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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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