Leases - Balance Sheet related information (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jan. 01, 2022
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 284	$ 500
Total operating lease liability		$ 500
Office and laboratory space
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	284
Operating lease liability	229
Operating lease liability, net of current portion	62
Total operating lease liability	$ 291