Stock-Based Compensation - Schedule of Excluding Any Effect of the Option Repricing, Weighted-average Assumptions Used in the Black-Scholes Option Pricing Model to Determine the Fair Value of the Stock Options Granted (Details) |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Share-Based Payment Arrangement [Abstract] | ||||||
| Expected option life (in years) | 5 years 3 months 18 days | 5 years 10 months 24 days | 5 years 10 months 24 days | 5 years 10 months 24 days | 5 years 10 months 24 days | 6 years |
| Assumed volatility | 105.00% | 105.00% | 107.00% | 105.00% | 105.20% | 90.80% |
| Assumed risk-free interest rate | 4.20% | 4.00% | 4.00% | 4.40% | 4.40% | 3.90% |