Note 8 - Common Stock Warrants - Fair Value of Warrants Liabilities Measured Within Level 3 on Recurring Basis (Details) - Warrant [Member] - Fair Value, Inputs, Level 3 [Member] - Fair Value, Recurring [Member] - October 2022 Warrants [Member] - USD ($) $ in Thousands |
3 Months Ended | |
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Jun. 30, 2025 |
Mar. 31, 2025 |
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| Fair value of warrants outstanding | $ 1 | $ 16 |
| Change in fair value of warrants | (1) | (15) |
| Fair value of warrants outstanding | $ 0 | $ 1 |
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- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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