v3.26.1
Segment Information - Significant expense categories (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Jun. 13, 2025
Segment Information              
Upfront cash payment             $ 12,000
Research and development expenses              
Total R&D $ 7,425 $ 24,091 $ 14,259 $ 31,987 $ 44,923 $ 41,488  
General and administrative expenses              
Total G&A 2,592 3,201 5,863 6,927 12,693 15,718  
Single reporting segment              
Segment Information              
Upfront cash payment   17,000   17,000      
Research and development expenses              
Employee costs 1,536 2,341 3,575 5,271 8,974 13,252  
Clinical product candidates 4,250 2,569 7,290 5,604 27,669 13,562  
Nonclincal product candidates 746 981 1,604 1,646 3,758 9,182  
Depreciation and amortization 265 618 541 1,254 2,133 2,792  
Other R&D 628 17,582 1,249 18,212 2,389 2,700  
Total R&D 7,425 24,091 14,259 31,987 44,923 41,488  
General and administrative expenses              
Employee costs 877 1,374 2,400 3,451 5,887 8,400  
Professional services 1,160 1,266 2,273 2,346 4,614 4,449  
Insurance 233 243 455 505 947 1,281  
Other G&A 322 318 735 625 1,245 1,588  
Total G&A $ 2,592 $ 3,201 $ 5,863 $ 6,927 $ 12,693 $ 15,718