Note 12 - Income Taxes - Summary of Significant Components of Net Deferred Income Tax Assets and Liabilities (Details) - USD ($) |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Accrued compensation and other | $ 8,000 | $ 31,000 |
| Less: valuation allowance | (8,000) | (31,000) |
| Deferred Tax Assets Current | 0 | 0 |
| Net operating loss | 16,049,000 | 14,686,000 |
| Research and development credit | 18,000 | 18,000 |
| Research and experimental costs | 2,018,000 | 1,207,000 |
| Warrants issued for services | 0 | 45,000 |
| Depreciation and amortization | 6,000 | 227,000 |
| Exercise of options and warrants | (49,000) | (36,000) |
| Stock based compensation | 1,968,000 | 1,718,000 |
| Intangibles and other | 561,000 | 787,000 |
| Less: valuation allowance | (19,449,000) | (17,078,000) |
| Net non-current deferred tax assets | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized, current. No definition available.
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| X | ||||||||||
- Definition Deferred liabilities valuation allowance non-current. No definition available.
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| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting, current. No definition available.
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| X | ||||||||||
- Definition Deferred tax assets non-current. No definition available.
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| X | ||||||||||
- Definition Represents the information pertaining to deferred tax liabilities options and warrants. No definition available.
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from derivative instruments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from in-process research and development cost acquired in business combination or from joint venture formation or both. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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