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Note 4 - Business Combination - Purchase Considerations (Details) - USD ($) $ in Thousands | Apr. 30, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Goodwill |  | $ 5,175 | $ 0 | $ 0
Evoke Neuroscience, Inc. [Member] |  |  |  |
Cash | $ 3,000 |  |  |
Common stock | 2,743 |  |  |
Earn-Out Shares | 478 |  |  |
Total Purchase Consideration | 6,221 |  |  |
Working capital | 139 |  |  |
Security deposit | 3 |  |  |
Deferred revenue, non-current portion | 56 |  |  |
Fair Value of Identified Net Assets | 1,046 |  |  |
Goodwill | 5,175 |  |  |
Evoke Neuroscience, Inc. [Member] | Developed Technology Rights [Member] |  |  |  |
Identified intangible asset | 700 |  |  |
Evoke Neuroscience, Inc. [Member] | Trade Names [Member] |  |  |  |
Identified intangible asset | 150 |  |  |
Evoke Neuroscience, Inc. [Member] | Noncompete Agreements [Member] |  |  |  |
Identified intangible asset | $ 110 |  |  |

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