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Note 15 - Stockholders' Equity (Details Textual) $ / shares in Units, $ in Thousands |  |  |  |  |  |  | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 27, 2024 shares | Jan. 09, 2024 shares | Dec. 21, 2023 USD ($) $ / shares | Apr. 27, 2023 USD ($) $ / shares | Sep. 09, 2022 shares | Oct. 29, 2021 shares | Mar. 31, 2024 USD ($) $ / shares | Dec. 31, 2024 $ / shares shares | May 27, 2024 | Jan. 29, 2024 $ / shares | Dec. 31, 2023 shares
Common Stock, Shares Authorized |  |  |  |  |  |  |  | 150,000,000 |  |  | 150,000,000
Preferred Stock, Shares Authorized |  |  |  |  |  |  |  | 5,000,000 |  |  |
Preferred Stock, Convertible, Shares Issuable |  |  |  |  |  |  |  | 1,000 |  |  |
Revision of Prior Period, Adjustment [Member] | May 2023 Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  |  | $ 45.5 |  |  |  |  |  |  |
Conversion of Series B Preferred Stock to Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Conversion of Stock, Shares Converted (in shares) |  | 15,000 |  |  |  |  |  |  |  |  |
Series B Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Authorized |  |  |  |  |  |  |  | 5,000,000 |  |  | 5,000,000
Preferred Stock, Shares Outstanding |  |  |  |  |  |  |  | 1,000 |  |  | 6,000
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  |  |  |  |  |  |  |  | $ 8.75 |
Preferred Stock, Change in Conversion Price, Income Statement Impact | $ |  |  | $ 4,500 |  |  |  |  |  |  |  |
Series B Preferred Stock [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Ratio |  |  |  |  |  |  |  |  |  | 0.75 |
Series B Preferred Stock [Member] | Previously Reported [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  | $ 45.5 | $ 220.5 |  |  |  |  |  |  |
Series B Preferred Stock [Member] | Revision of Prior Period, Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  | $ 8.75 |  |  |  |  |  |  |  |
Series B Preferred Stock [Member] | The 2021 Private Placement Program [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Shares Issuable |  |  |  |  |  |  |  | 15,065 |  |  | 640,800
Stock Issued During Period, Shares, New Issues |  |  |  |  |  | 15,000 |  |  |  |  |
Preferred Stock, Shares Outstanding |  |  |  |  |  |  |  | 131 |  |  | 5,607
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  |  |  |  |  |  | $ 8.75 |  |  |
Series B Preferred Stock [Member] | The 2023 Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Change in Conversion Price, Income Statement Impact | $ |  |  |  | $ 1,800 |  |  |  |  |  |  |
Series C Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | 3,250 |  |  |  |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding |  |  |  |  |  |  |  | 0 |  |  | 1,000
Preferred Stock, Change in Conversion Price, Income Statement Impact | $ |  |  | $ 500 |  |  |  | $ 400 |  |  |  |
Series C Preferred Stock [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Ratio |  |  |  |  |  |  |  |  | 0.75 |  |
Series C Preferred Stock [Member] | Previously Reported [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  | $ 45.5 | $ 220.5 |  |  | $ 8.75 |  |  |  |
Series C Preferred Stock [Member] | Revision of Prior Period, Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  | $ 8.75 | $ 45.5 |  |  | $ 4.9 |  |  |  |
Series C Preferred Stock [Member] | The 2023 Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Change in Conversion Price, Income Statement Impact | $ |  |  |  | $ 194 |  |  |  |  |  |  |
Series C Preferred Stock [Member] | The 2022 Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Shares Issuable |  |  |  |  |  |  |  | 125,371 |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  | 3,250 |  |  |  |  |  |
Preferred Stock, Shares Outstanding |  |  |  |  |  |  |  | 0 |  |  | 1,097
Preferred Stock, Convertible, Conversion Price | $ / shares |  |  |  |  |  |  |  | $ 8.75 |  |  |

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