Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Revenue
Revenues	$ 268	$ 163	$ 1,234	$ 337
Contract assets	0		0		$ 0
Contract liability	48		48		$ 60
Revenue, contract liabilities			100
Maximum
Revenue
Contract liability	100		100
Contracts and grants
Revenue
Revenues	252	163	1,218	307
Rockefeller University | Contracts and grants
Revenue
Revenues	$ 200	$ 100	$ 1,200	$ 200