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v3.25.2

Note 3 - Net Loss Per Share (Details Textual) - USD ($) $ in Millions |  |  |  |  |  | 2 Months Ended
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Jun. 30, 2025 | May 14, 2025 | May 12, 2025 | Jun. 03, 2024 | May 14, 2024 | Jun. 30, 2025 | Jun. 30, 2025
Conversion of the 2026 Notes Into 2029 Notes [Member] |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  | $ 70.8 |  |  |  |  |
Conversion of the 2026 Notes Into Common Stock [Member] |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  | $ 10.0 | $ 10.0 |  | $ 10.0 |  |
Debt Conversion, Converted Instrument, Shares Issued | 539,320 | 10,000,000 |  |  |  | 539,320 | 539,320
Conversion of 2026 Notes into New Term Loans [Member] |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  | $ 118.1 |  |  |

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