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v3.25.1

Subsequent events (Details Textual) - USD ($) | Mar. 27, 2025 | Feb. 26, 2025 | Feb. 25, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Sep. 12, 2021 | Sep. 13, 2020
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Subsequent events |  |  |  |  |  |  |
Common stock, par value (in dollars per share) |  |  |  | $ 0.001 | $ 0.001 |  |
Securities Purchase Agreement [Member] | Common Stock |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |
Common stock, par value (in dollars per share) |  |  |  |  |  | $ 0.001 | $ 0.001
Subsequent Event |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |
Proceeds from issuance of private placement |  |  | $ 1,000,000 |  |  |  |
Subsequent Event | Securities Purchase Agreement [Member] | Edward D. Bagley | Private Placement | Common Stock |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |
Number of shares issued at-the-market offering (in shares) |  | 2,000,000 |  |  |  |  |
Common stock, par value (in dollars per share) |  | $ 0.001 |  |  |  |  |
Purchase price (in dollars per share) |  | $ 0.5 |  |  |  |  |
Proceeds from issuance of private placement |  | $ 1,000,000 |  |  |  |  |
Subsequent Event | Securities Placement Agreement [Member] | Private or public offering (the “Offering”) | RBW Capital Partners LLC and Dawson James Securities, Inc. [Member] |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |
Agreement term | 6 months |  |  |  |  |  |
Percentage of total consideration of offering for Mergers and Acquisitions advisory fee payable | 5.00% |  |  |  |  |  |
Percentage of capital raised for cash success fee payable | 8.00% |  |  |  |  |  |
Maximum reimbursement of advisor’s out-of-pockets fees and expenses | $ 150,000 |  |  |  |  |  |

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