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Fair Value Measurements - Schedule of liabilities measured at fair value on the condensed consolidated balance sheet (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | $ 1,439,500 |  | $ 1,439,500 |  | $ 3,174,249
Recurring fair value measurements, gain (loss) during period | 120,350 | $ 809,336 | 613,236 | $ 3,118,144 |
Derivative liability - non-controlling redeemable preferred shares |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Recurring fair value measurements, gain (loss) during period |  | 0 |  | (3,626) |
2022 July Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Recurring fair value measurements, gain (loss) during period |  | 0 |  | 4,621 |
Private warrants - July 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Recurring fair value measurements, gain (loss) during period |  | 80,673 |  | 80,673 |
2024 February Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 620 |  | 620 |  | 291,566
Recurring fair value measurements, gain (loss) during period | 91,092 | 728,663 | 290,946 | 3,036,476 |
2024 October Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 13,989 |  | 13,989 |  | 292,234
Recurring fair value measurements, gain (loss) during period | (7,015) | 0 | 278,245 | 0 |
Senior Convertible Notes - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 33,623 |  | 33,623 |  | 2,475,162
Recurring fair value measurements, gain (loss) during period | (4,623) | 0 | (123,384) | 0 |
Additional Investment Rights - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 111,107 |  | 111,107 |  | 5,950
Recurring fair value measurements, gain (loss) during period | (100,774) | 0 | (105,157) | 0 |
2024 December Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 81 |  | 81 |  | 109,337
Recurring fair value measurements, gain (loss) during period | 48,627 | $ 0 | 109,256 | $ 0 |
2025 March Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 53,587 |  | 53,587 |  |
Recurring fair value measurements, gain (loss) during period | (17,330) |  | 52,957 |  |
2025 April Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 40,638 |  | 40,638 |  |
Recurring fair value measurements, gain (loss) during period | (8,955) |  | (8,955) |  |
2025 May Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 188,467 |  | 188,467 |  |
Recurring fair value measurements, gain (loss) during period | (48,550) |  | (48,550) |  |
Senior Convertible Notes - May 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 895,497 |  | 895,497 |  |
Recurring fair value measurements, gain (loss) during period | 167,878 |  | 167,878 |  |
2025 September Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 965 |  | 965 |  |
Recurring fair value measurements, gain (loss) during period | 0 |  | 0 |  |
Senior Convertible Notes - September 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 100,926 |  | 100,926 |  |
Recurring fair value measurements, gain (loss) during period | 0 |  | 0 |  |
Level 1: Quoted Prices in Active Markets for Identical Assets |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | Derivative liability - non-controlling redeemable preferred shares |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | 2022 July Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | Private warrants - July 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | 2024 February Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | 2024 October Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | Senior Convertible Notes - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | Additional Investment Rights - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | 2024 December Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 1: Quoted Prices in Active Markets for Identical Assets | 2025 March Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 1: Quoted Prices in Active Markets for Identical Assets | 2025 April Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 1: Quoted Prices in Active Markets for Identical Assets | 2025 May Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 1: Quoted Prices in Active Markets for Identical Assets | Senior Convertible Notes - May 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 1: Quoted Prices in Active Markets for Identical Assets | 2025 September Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 1: Quoted Prices in Active Markets for Identical Assets | Senior Convertible Notes - September 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 2: Significant Other Observable Inputs |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 2: Significant Other Observable Inputs | Derivative liability - non-controlling redeemable preferred shares |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 2: Significant Other Observable Inputs | 2022 July Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 2: Significant Other Observable Inputs | Private warrants - July 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 2: Significant Other Observable Inputs | 2024 February Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 2: Significant Other Observable Inputs | 2024 October Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 2: Significant Other Observable Inputs | Senior Convertible Notes - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 2: Significant Other Observable Inputs | Additional Investment Rights - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 2: Significant Other Observable Inputs | 2024 December Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  | 0
Level 2: Significant Other Observable Inputs | 2025 March Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 2: Significant Other Observable Inputs | 2025 April Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 2: Significant Other Observable Inputs | 2025 May Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 2: Significant Other Observable Inputs | Senior Convertible Notes - May 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 2: Significant Other Observable Inputs | 2025 September Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 2: Significant Other Observable Inputs | Senior Convertible Notes - September 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 0 |  | 0 |  |
Level 3: Significant Unobservable Inputs |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 1,439,500 |  | 1,439,500 |  | 3,174,249
Level 3: Significant Unobservable Inputs | Derivative liability - non-controlling redeemable preferred shares |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 3: Significant Unobservable Inputs | 2022 July Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 3: Significant Unobservable Inputs | Private warrants - July 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements |  |  |  |  | 0
Level 3: Significant Unobservable Inputs | 2024 February Institutional/Accredited Investor warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 620 |  | 620 |  | 291,566
Level 3: Significant Unobservable Inputs | 2024 October Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 13,989 |  | 13,989 |  | 292,234
Level 3: Significant Unobservable Inputs | Senior Convertible Notes - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 33,623 |  | 33,623 |  | 2,475,162
Level 3: Significant Unobservable Inputs | Additional Investment Rights - October 2024 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 111,107 |  | 111,107 |  | 5,950
Level 3: Significant Unobservable Inputs | 2024 December Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 81 |  | 81 |  | $ 109,337
Level 3: Significant Unobservable Inputs | 2025 March Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 53,587 |  | 53,587 |  |
Level 3: Significant Unobservable Inputs | 2025 April Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 40,638 |  | 40,638 |  |
Level 3: Significant Unobservable Inputs | 2025 May Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 188,467 |  | 188,467 |  |
Level 3: Significant Unobservable Inputs | Senior Convertible Notes - May 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 895,497 |  | 895,497 |  |
Level 3: Significant Unobservable Inputs | 2025 September Institutional/Accredited Investor Warrants |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | 965 |  | 965 |  |
Level 3: Significant Unobservable Inputs | Senior Convertible Notes - September 2025 |  |  |  |  |
Recurring fair value measurements |  |  |  |  |
Recurring fair value measurements | $ 100,926 |  | $ 100,926 |  |

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