Debt - Long term debt and unamortized discount balances (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Long-term debt, net of discount	$ 31,253	$ 31,134
Term loan | K2 HealthVentures LLC
Debt Instrument [Line Items]
Outstanding principal amount	30,000	30,000
Add: accreted liability of final payment fee	1,253	1,134
Long-term debt, net of discount	$ 31,253	$ 31,134