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Note 1 - Business Description (Details Textual) |  |  | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 23, 2022 | Jul. 05, 2022 shares | Dec. 31, 2022 shares | Sep. 30, 2024 $ / shares shares | Aug. 12, 2024 $ / shares | Dec. 31, 2023 $ / shares shares | Nov. 16, 2023 | Jan. 27, 2022 shares
Common Stock, Shares, Outstanding (in shares) |  |  |  | 8,476,202 |  | 3,678,550 |  | 112,903
Preferred Stock, Shares Outstanding (in shares) |  |  |  | 0 |  | 1,676,165 |  |
Common Stock Dividends, Shares (in shares) |  | 386 |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  | $ 0.0001 |  | $ 0.0001 |  |
The Merger [Member] |  |  |  |  |  |  |  |
Business Acquisition, Conversion Rate of Shares |  |  |  |  | 0.104 |  |  |
Former Firefly 2023 Stockholders [Member] |  |  |  |  |  |  |  |
Subsidiary, Ownership Percentage, Parent |  |  |  |  |  |  | 92.00% |
Former Firefly Stockholders [Member] |  |  |  |  |  |  |  |
Subsidiary, Ownership Percentage, Parent |  |  |  |  |  |  | 8.00% |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 750 |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  | 112,903 | 5,333 |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding (in shares) |  |  |  |  |  |  |  | 332,636
Stock Issued During Period, Shares, New Issues (in shares) |  | 332,636 |  |  |  |  |  |
Series A Preferred Stock [Member] | Common Stock [Member] |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  | 0 |  |  |  |  |
Private Firefly [Member] |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  |  | $ 0.00001 |  |  |
New Firefly Common Stock [Member] |  |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  |  | $ 0.0001 |  |  |

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