Right of use of assets - Summary of costs included in operating expenses related to right of use assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Lease cost
Operating lease cost	$ 2,570	$ 2,331
Short-term lease cost	0	279
Total lease cost	2,570	2,610
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used in operating leases	2,533	2,264
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 17	$ 4,184
Weighted average remaining lease term (in years)	1 year 11 months 15 days
Weighted average discount rate	8.50%	8.49%