Segment Reporting - Summary of Research and Development Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
External costs
Other clinical related expenses	$ 1,217	$ 843	$ 2,001	$ 3,330
Preclinical activities related expenses	86	1,594	155	3,550
Expenses related to manufacturing of clinical and research material	464	1,421	1,283	2,269
Other external costs	557	1,899	1,239	4,471
Internal costs:
Personnel-related expenses (including stock-based compensation)	3,159	5,693	6,523	13,520
Facilities and other allocated expenses	349	2,069	723	4,178
Total research and development expenses	9,142	16,566	18,262	39,463
COVALENT - 101
External costs
Clinical research organization expenses		926		1,927
COVALENT - 102
External costs
Clinical research organization expenses		(142)		472
COVALENT - 103
External costs
Clinical research organization expenses	204	859	502	1,598
COVALENT - 111
External costs
Clinical research organization expenses		1,093		3,335
COVALENT - 112
External costs
Clinical research organization expenses		$ 311		$ 813
COVALENT - 211
External costs
Clinical research organization expenses	1,523		2,266
COVALENT - 212
External costs
Clinical research organization expenses	785		1,347
GLP - 131
External costs
Clinical research organization expenses	$ 798		$ 2,223