Fair Value Measurements - Assumptions used for the fair value calculations of warrants (Details)	Mar. 31, 2025 USD ($) shares	Dec. 31, 2024 shares USD ($)
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