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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2026
Stockholders Equity Note [Abstract] |
Schedule of Common Stock Reserved for Future Issuance | The Company had reserved shares of common stock for future issuance as shown in the table below:
|  | March 31, 2026 |  |  | December 31, 2025 |
Shares of common stock reserved for future issuance upon exercise of outstanding warrants and pre-funded warrants |  |  | 19,100,800 |  |  |  | 19,100,800 |
Shares of common stock reserved for future issuance upon exercise under the 2019 Stock Incentive Plan |  |  | 11,763,268 |  |  |  | 9,023,200 |
Shares of common stock reserved for future issuance under the 2019 Employee Stock Purchase Plan |  |  | 1,103,842 |  |  |  | 1,103,842 |
Shares of common stock reserved for future issuance upon exercise under the 2012 Stock Incentive Plan |  |  | 278,418 |  |  |  | 278,418 |
|  |  | 32,246,328 |  |  |  | 29,506,260 |
Warrant Activity Including Activity Related To Pre-funded Warrants | Warrants Warrant activity, including activity related to pre-funded warrants, is shown in the table below:
|  | Number of Pre-funded Warrant Shares |  |  | Number of Common Stock Warrant Shares |  |  | Total Number of Warrant Shares |  |  | Weighted Average Exercise Price |
Outstanding as of December 31, 2025 |  |  | 17,248,948 |  |  |  | 1,851,852 |  |  |  | 19,100,800 |  |  | $ | 0.13 |
Exercised |  |  | — |  |  |  | — |  |  |  | — |  |  | $ | — |
Outstanding as of March 31, 2026 |  |  | 17,248,948 |  |  |  | 1,851,852 |  |  |  | 19,100,800 |  |  | $ | 0.13 |
Schedule of Share-based Compensation, Stock Options, Activity | A summary of the Company’s combined stock option activity for the 2019 Plan and the 2012 Plan is as follows:
|  | Number of Option Shares |  |  | Weighted Average Exercise Price |
Outstanding as of December 31, 2025 |  |  | 9,301,618 |  |  | $ | 3.63 |
Granted |  |  | 3,176,250 |  |  | $ | 10.66 |
Exercised |  |  | (104,992 | ) |  | $ | 2.11 |
Forfeited |  |  | (331,190 | ) |  | $ | 6.74 |
Expired |  |  | — |  |  | $ | — |
Outstanding as of March 31, 2026 |  |  | 12,041,686 |  |  | $ | 5.41 |
Options exercisable as of March 31, 2026 |  |  | 5,918,559 |  |  | $ | 3.46 |
Options unvested as of March 31, 2026 |  |  | 6,123,127 |  |  | $ | 7.29 |
Schedule of Stock-based Compensation Expenses Recognized | The following table summarizes the classifications of stock-based compensation expenses for the 2012 Plan, the 2019 Plan and the 2019 ESPP recognized in the Condensed Consolidated Statements of Comprehensive Loss:
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025 |
General and administrative expense |  | $ | 1,349 |  |  | $ | 682 |
Research and development expense |  |  | 842 |  |  |  | 526 |
Total stock-based compensation expenses |  | $ | 2,191 |  |  | $ | 1,208 |

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