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Note 6 - Preferred Stock (Details Textual) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 28, 2022 shares | Dec. 31, 2023 $ / shares shares | Dec. 31, 2022 shares | Sep. 30, 2024 $ / shares shares | Jan. 25, 2022 $ / shares shares
Preferred Stock, Shares Authorized (in shares) |  |  |  | 3,000,000 |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  | $ 0.01 |
Conversion of Series B Preferred Stock into Common Stock [Member] |  |  |  |  |
Conversion of Stock, Shares Converted (in shares) |  | 854,753 | 1,145,247 |  |
Conversion of Stock, Shares Issued (in shares) |  | 1,282,129 | 1,717,870 |  |
Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares) |  | 307,129 |  |  |
Series A Preferred Stock [Member] | Maximum [Member] |  |  |  |  |
Preferred Stock, Shares Authorized (in shares) |  |  |  |  | 3,000,000
Series B Preferred Stock [Member] |  |  |  |  |
Preferred Stock, Shares Authorized (in shares) |  | 3,000,000 |  | 3,000,000 | 2,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  | $ 0.01 |  | $ 0.01 | $ 0.01
Preferred Stock, Convertible, Conversion Ratio |  |  |  |  | 1.5
Stock Issued During Period, Shares, New Issues (in shares) | 2,000,000 |  |  |  |
Preferred Stock, Shares Outstanding, Ending Balance (in shares) |  | 650,000 | 854,753 | 0 |
Preferred Stock, Convertible, Shares Issuable (in shares) |  | 975,000 | 1,282,129 |  |

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