Leases - Additional Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Leases [Line Items] | ||||
| Operating lease description | The Company leases space under operating leases for administrative offices in New York, New York, and Waltham, Massachusetts. | |||
| Operating lease, payments | $ 100 | $ 200 | $ 100 | $ 200 |
| Operating lease costs | $ 109 | 108 | $ 217 | 243 |
| Weighted-Average remaining lease term | 54 months | 54 months | ||
| Weighted-average discount rate - operating lease | 8.40% | 8.40% | ||
| General and Administrative Expenses [Member] | ||||
| Leases [Line Items] | ||||
| Operating lease costs | $ 100 | 200 | $ 100 | 200 |
| Research and Development Expenses [Member] | ||||
| Leases [Line Items] | ||||
| Operating lease costs | $ 0 | $ 0 | $ 24 | |