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Note 18 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 28, 2025 | Feb. 19, 2025 | Feb. 14, 2025 | Feb. 12, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 20, 2024 | Aug. 12, 2024
Proceeds from Warrant Exercises |  |  |  |  | $ 36 | $ 0 |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  | $ 11.54 |  |  |
Subsequent Event [Member] | March 2025 Equity Issuance [Member] |  |  |  |  |  |  |  |
Units Issued During Period, Shares (in shares) | 547,737 |  |  |  |  |  |  |
Units Issued During Period, Number of Shares Per Unit (in shares) | 1 |  |  |  |  |  |  |
Equity Offering, Unit Price (in dollars per share) | $ 3 |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity | $ 1,567 |  |  |  |  |  |  |
Subsequent Event [Member] | Convertible Promissory Note Converted to Common Stock [Member] |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) |  |  | 800,000 |  |  |  |  |
PIPE Warrants [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  | 823,529
PIPE Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  | 823,529 |  |  |  |
Pre-funded Warrants [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  |  | 504,324
Pre-funded Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  | 504,324 |  |  |  |
Pre-funded Warrant and PIPE Warrant [Member] |  |  |  |  |  |  |  |
Equity Offering, Unit Price (in dollars per share) |  |  |  |  |  |  |  | $ 4.249
Pre-funded Warrant and PIPE Warrant [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Warrant Exercises (in shares) |  |  |  | 1,327,853 |  |  |  |
Proceeds from Warrant Exercises |  |  |  | $ 5,625 |  |  |  |
Convertible Promissory Note Warrants [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  |  |  |  |  |  | 800,000 |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  |  |  |  | 1 |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  |  |  | $ 4 |
Warrants and Rights Outstanding, Term (Year) |  |  |  |  |  |  | 5 years |
Convertible Promissory Note Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |  | 800,000 |  |  |  |  |  |
Stock Issued During Period, Shares, Warrant Exercises (in shares) |  | 800,000 |  |  |  |  |  |
Proceeds from Warrant Exercises |  | $ 3,200 |  |  |  |  |  |
March 2025 Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | 1 |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 4 |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term (Year) | 3 years |  |  |  |  |  |  |
March 2025 Broker Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | 25,958 |  |  |  |  |  |  |

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