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Common Stock Warrants - Additional Information (Details) - $ / shares | Feb. 26, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Jul. 29, 2022
--- | --- | --- | --- | ---
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Replacement of warrants |  | 1,003,191 |  |
Pre-Funded Warrants issued to purchase aggregate number of shares of common stock |  | 58,914,712 | 44,754,853 |
Apexigen, Inc. |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Replacement of warrants |  | 5,815,613 |  |
Pre-Funded Warrants |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Warrants outstanding |  | 1,611,215 |  |
Purchase price per warrant | $ 4.779 |  |  |
Maximum [Member] | Pre-Funded Warrants |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Warrants exercise price per share | $ 0.001 |  |  |
Warrant One |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Warrants outstanding |  | 344,259 |  |
Warrants exercise price per share |  | $ 8.12 |  |
Warrant Two |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Warrants outstanding |  | 17,212 |  |
Warrants exercise price per share |  | $ 10.14 |  |
Warrant Three |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Warrants outstanding |  | 641,720 |  |
Warrants exercise price per share |  | $ 66.67 |  | $ 66.67
Common Stock | Pre-Funded Warrants |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |
Pre-Funded Warrants issued to purchase aggregate number of shares of common stock | 1,611,215 |  |  |

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