Note 7 - Stockholders' Equity and Equity-linked Instruments - Schedule of Allocated Proceeds and Offering Costs (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Oct. 22, 2025 |
Dec. 31, 2025 |
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| Allocated proceeds | $ 20,000,000 | |
| Allocated offering costs | 1,372,000 | $ 4,420,000 |
| Pipe Pre-Funded Warrants [Member] | ||
| Allocated proceeds | 9,415,000 | |
| Allocated offering costs | 646,000 | |
| Pipe October 2025 Warrants [Member] | ||
| Allocated proceeds | 8,459,000 | |
| Allocated offering costs | 580,000 | |
| Pipe Purchase Agreement [Member] | ||
| Allocated proceeds | 20,000,000 | |
| Common Stock [Member] | Pipe Purchase Agreement [Member] | ||
| Allocated proceeds | 2,126,000 | |
| Allocated offering costs | $ 146,000 |
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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