Note 2 - Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Intangible assets | $ 1,770 | $ 1,770 |
| Less accumulated amortization | (962) | (929) |
| Total | 808 | 841 |
| Trade Names [Member] | ||
| Intangible assets | 900 | 900 |
| Patents [Member] | ||
| Intangible assets | $ 870 | $ 870 |
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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- Details
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