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Fair Value Measurements - Assumptions used for the fair value calculations of warrants (Details) | Mar. 31, 2025 USD ($) shares | Dec. 31, 2024 shares USD ($)
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September 2022 Series B Warrants | Stock price |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | shares | 1.24 | 1.22
September 2022 Series B Warrants | Exercise price |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 17 | 17
September 2022 Series B Warrants | Expected term (in years) |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 4.5 | 4.7
September 2022 Series B Warrants | Volatility |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 90 | 85
September 2022 Series B Warrants | Risk-free rate |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 3.9 | 4.3
November 2022 Warrants | Stock price |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | shares | 1.24 | 1.22
November 2022 Warrants | Exercise price |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 39.18 | 39.18
November 2022 Warrants | Expected term (in years) |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 2.6 | 2.8
November 2022 Warrants | Volatility |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 100 | 95
November 2022 Warrants | Risk-free rate |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 3.9 | 4.3
April 2023 Warrants | Stock price |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | shares | 1.24 | 1.22
April 2023 Warrants | Exercise price |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 2.04 | 2.04
April 2023 Warrants | Expected term (in years) |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 3.1 | 3.3
April 2023 Warrants | Volatility |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 95 | 90
April 2023 Warrants | Risk-free rate |  |
Fair Value Measurements |  |
Warrants outstanding, measurement input | 3.9 | 4.3

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