Leases - Future minimum lease payments under non-cancellable leases (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Operating leases
2024	$ 1,733
2025	1,785
2026	1,839
2027	1,894
2028	1,951
Thereafter	2,516
Total future minimum lease payments	11,718
Present value adjustment	(2,529)
Present value of lease liabilities	$ 9,189
Operating Lease, Liability, Statement of Financial Position	Operating lease liability, current portion, Operating lease liability, net of current portion
Finance lease
2024	$ 49
Total future minimum lease payments	49
Present value adjustment	(1)
Present value of lease liabilities	$ 48
Finance Lease, Liability, Statement of Financial Position	Other current liabilities, Other non-current liabilities