Leases - Narrative (Details) ft² in Thousands, $ in Thousands	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	May 31, 2025 ft²
Lessee, Lease, Description [Line Items]
Lease term			45 months
Operating lease right-of-use assets	$ 1,372	$ 1,469
Operating lease liability, current	453	435
Operating lease liability, noncurrent	$ 1,090	$ 1,209
Remaining lease term	2 years 10 months 24 days
Operating lease, discount rate	10.60%
Waltham, Massachusetts | Building
Lessee, Lease, Description [Line Items]
Area of office space (in sqft) | ft²			25