Leases - Balance Sheet related information (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 230	$ 284
Office and laboratory space
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	230	284
Operating lease liability	236	229
Operating lease liability, net of current portion		62
Total operating lease liability	$ 236	$ 291