Leases - Balance Sheet related information (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 1,458	$ 1,564
Operating lease liabilities, net of current portion	1,206	$ 1,340
Office and laboratory space
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	1,458		$ 1,564
Operating lease liabilities, current portion	419		310
Operating lease liabilities, net of current portion	1,206		1,340
Total operating lease liabilities	$ 1,625		$ 1,650