Segment Reporting (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($) segment	Mar. 31, 2025 USD ($) segment
Segment Reporting
Number of reportable segments | segment	1	1
Interest income	$ (247)	$ (275)
Other expense		5,500
Net loss	(6,804)	(9,579)
Operating segment | Single reportable segment
Segment Reporting
General and administrative expenses, personnel costs	932	609
General and administrative expenses, other general and administrative expenses	1,208	634
Interest income	(247)	(275)
Other expense		5,500
Operating segment | HCC | Single reportable segment
Segment Reporting
Direct research and development expenses by program	700	437
Operating segment | IPF | Single reportable segment
Segment Reporting
Direct research and development expenses by program		1,033
Operating segment | Pre-clinical, CMC, and other (unallocated) | Single reportable segment
Segment Reporting
Direct research and development expenses by program	87	175
Operating segment | TTI 109 | Single reportable segment
Segment Reporting
Direct research and development expenses by program	2,902	358
Operating segment | Unallocated Research and Development | Single reportable segment
Segment Reporting
Unallocated research and development expense, personnel costs	1,004	858
Unallocated research and development expense, consultant fees and other costs	$ 218	$ 250