Leases - Balance Sheet related information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jan. 01, 2022
Lessee, Lease, Description [Line Items]
Operating right-of-use asset, net	$ 190	$ 200
Operating lease liability		$ 200
Office and laboratory space
Lessee, Lease, Description [Line Items]
Operating right-of-use asset, net	190
Operating lease liability	46
Operating lease liability, net of current portion	147
Operating lease liability	$ 193