Stock-Based Compensation - Stock Incentive Plan (Details) - $ / shares |
1 Months Ended | 3 Months Ended | |||
|---|---|---|---|---|---|
Jan. 01, 2026 |
Nov. 30, 2025 |
Sep. 30, 2021 |
Mar. 31, 2026 |
Dec. 31, 2025 |
|
| Stock-Based Compensation | |||||
| Common stock reserved for issuance (in shares) | 24,838,242 | 20,469,237 | |||
| Stock options granted | 9,280 | ||||
| Exercise price | $ 8.36 | ||||
| 2021 Plan | |||||
| Stock-Based Compensation | |||||
| Common stock reserved for issuance (in shares) | 469,929 | ||||
| Annual increase in number of shares reserved for issuance (as a percent) | 5.00% | ||||
| Additional common stock reserved under the plan (in shares) | 226,931 | ||||
| Shares available for future issuance (in shares) | 356,869 | ||||
| 2025 Plan | |||||
| Stock-Based Compensation | |||||
| Shares available for future issuance (in shares) | 21,805 | ||||
| 2025 Plan | Employee Stock Option | |||||
| Stock-Based Compensation | |||||
| Stock options granted | 2,285,592 | ||||
| Total shares per tranche | 571,398 | ||||
| 2025 Plan | Employee Stock Option | Tranche 1 | |||||
| Stock-Based Compensation | |||||
| Vesting description | The first tranche of stock options vests in equal monthly installments over a period of three years, subject to the employee continuing to provide services to the Company on each vesting date. | ||||
| Vesting period | 3 years | ||||
| 2025 Plan | Employee Stock Option | Tranche 2 | |||||
| Stock-Based Compensation | |||||
| Vesting description | The second tranche of stock options ("Tranche 2 Stock Options") will become eligible to vest based on the portion of such stock options that equals the percentage of the Series A warrants that are exercised by December 31 of each of 2025, 2026, 2027, 2028, and 2029 and on June 30, 2030 (each, a “measurement date”). Any Tranche 2 Stock Options will vest in three equal installments with one-third vesting on the applicable measurement date and the remaining two-thirds vesting in equal annual installments on each of the subsequent two anniversaries thereafter. | ||||
| 2025 Plan | Employee Stock Option | Tranche 3 | |||||
| Stock-Based Compensation | |||||
| Vesting description | The third tranche of stock options ("Tranche 3 Stock Options") became eligible to vest based on the portion of such stock options that equaled the percentage of Series B warrants that were exercised by December 31, 2025. The Tranche 3 Stock Options vest in three equal installments with one-third vesting on December 31, 2025 and the remaining two-thirds vesting in equal annual installments on each of the subsequent two anniversaries thereafter. | ||||
| 2025 Plan | Employee Stock Option | Tranche 4 | |||||
| Stock-Based Compensation | |||||
| Vesting description | The fourth tranche of stock options ("Tranche 4 Stock Options") will become eligible to vest based on the portion of such stock options that equal the percentage of the Series C warrants that are exercised or are cancelled due to the Company’s receipt of non-dilutive capital by December 31, 2026. Any Tranche 4 Stock Options that become eligible for vesting will vest in three equal installments with one-third vesting on December 31, 2026 and the remaining two-thirds vesting in equal annual installments on each of the subsequent two anniversaries thereafter. | ||||