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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 28, 2026 | Mar. 31, 2026 | Dec. 31, 2025 | Apr. 30, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Common stock, par value |  | $ 0.001 | $ 0.001 |
Preferred stock, par value |  | $ 0.001 | $ 0.001 |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] |  | srt:ChiefExecutiveOfficerMember |  |
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description |  | regularly reviews scientific data from clinical and preclinical studies and forecasted expenses for continuing operations. |  |
Cash, cash equivalents and short-term investments |  | $ 270,900 |  |
Gross proceeds from closing of underwritten offering | $ 175,000 |  |  |
Accumulated deficit |  | $ (361,029) | $ (334,840) |
GT Medical Technologies, Inc. [Member] |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Percentage of issued and outstanding capital stock |  |  |  | 0.50%

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