Note 3 - Balance Sheet Components - Prepaid Expenses (Details) - USD ($) |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Prepaid clinical trial costs | $ 1,412,311 | $ 1,524,813 |
| Prepaid insurance premiums | 73,559 | 220,675 |
| Prepaid rent | 13,045 | 13,045 |
| Other prepaid expenses | 10,000 | 10,000 |
| Total prepaid expenses | $ 1,508,915 | $ 1,768,533 |
| X | ||||||||||
- Definition Amount of prepaid clinical trial expenses in the next 12 months No definition available.
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for other costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of asset related to consideration paid in advance for rent that provides economic benefits within a future period of one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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