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Note 9 - Convertible Promissory Note (Details Textual) $ / shares in Units, $ in Thousands |  | 12 Months Ended
--- | --- | ---
Dec. 20, 2024 USD ($) $ / shares shares | Dec. 31, 2024 USD ($) $ / shares | Dec. 31, 2023 USD ($)
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  | $ 11.54 |
Unrealized Gain (Loss) on Derivatives |  | $ (156) | $ 0
Conversion Option [Member] |  |  |
Unrealized Gain (Loss) on Derivatives |  | 157 |
Conversion Option [Member] | Other Nonoperating Income (Expense) [Member] |  |  |
Payments of Debt Issuance Costs |  | $ 16 |
Measurement Input, Share Price [Member] | Conversion Option [Member] |  |  |
Derivative Liability, Measurement Input |  | 2.33 |
Measurement Input, Exercise Price [Member] | Conversion Option [Member] |  |  |
Derivative Liability, Measurement Input |  | 3 |
Measurement Input, Expected Term [Member] | Conversion Option [Member] |  |  |
Derivative Liability, Measurement Input |  | 1 |
Measurement Input, Price Volatility [Member] | Conversion Option [Member] |  |  |
Derivative Liability, Measurement Input |  | 1.1071 |
Measurement Input, Risk Free Interest Rate [Member] | Conversion Option [Member] |  |  |
Derivative Liability, Measurement Input |  | 0.0427 |
Convertible Promissory Note Warrants [Member] |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares | 800,000 |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 4 |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares | 1 |  |
Warrants and Rights Outstanding, Term (Year) | 5 years |  |
Convertible Promissory Note [Member] |  |  |
Debt Instrument, Face Amount | $ 2,400 |  |
Debt Instrument, Unamortized Discount | 360 |  |
Proceeds from Issuance of Debt | $ 2,040 |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares | $ 3 |  |
Debt Instrument, Covenant, Minimum Financing Required to Avoid Conversion Price Adjustment | $ 5,000 |  |
Debt Instrument, Covenant, Minimum Financing Required to Avoid Conversion Price Adjustment, Percentage If Not Met | 90.00% |  |
Debt Instrument, Minimum Floor Price (in dollars per share) | $ / shares | $ 0.48 |  |
Debt Instrument, Covenant, Percentage Adjustment to Conversion Price if Defaulted | 85.00% |  |
Debt Instrument, Covenant, Percentage Increase in Prepayment of Outstanding Principal From Control Change | 115.00% |  |
Payments of Debt Issuance Costs |  | $ 85 |

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