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v3.26.1

Note 1 - Organization and Basis of Presentation (Details Textual) $ / shares in Units, $ in Thousands |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 26, 2025 $ / shares | Mar. 31, 2026 USD ($) $ / shares | Mar. 31, 2025 USD ($) $ / shares | Dec. 31, 2025 USD ($) $ / shares | May 14, 2024 USD ($)
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 |
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation |  | $ 5,383 | $ 4,149 |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest |  | (21,253) | $ (20,370) |  |
Working Capital |  | $ (19,100) |  |  |
Potential Financing Amount |  |  |  | $ 150,000 |
Roth Capital [Member] |  |  |  |  |
Sale of Stocks, Maximum Amount Authorized to Sell |  |  |  |  | $ 25,000
Reverse Stock Split [Member] |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 10 |  |  |  |

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