v3.26.3
Segments (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Sep. 30, 2025
USD ($)
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Sep. 30, 2026
USD ($)
segment
Sep. 30, 2025
USD ($)
Segment Reporting [Abstract]                
Number of operating segments | segment             1  
Number of reportable segments | segment             1  
Segment Reporting [Line Items]                
Research and development expense $ 16,075     $ 18,097     $ 55,607 $ 43,873
Net loss (20,999) $ (23,502) $ (27,232) (20,103) $ (15,645) $ (12,400) (71,733) (48,148)
Interest income 5,096     71     12,415 656
Reportable Segment                
Segment Reporting [Line Items]                
General and administrative, excluding personnel expenses 7,262     1,642     18,486 3,975
General and administrative, personnel expenses (including share-based compensation) 5,442     609     14,101 1,488
Other segment items (7,780)     (245)     (16,461) (1,188)
Net loss (20,999)     (20,103)     (71,733) (48,148)
Interest income 5,100     100     12,400 700
Investment accretion 2,600     100     4,000 500
Reportable Segment | VDPHL01                
Segment Reporting [Line Items]                
Research and development expense 13,156     16,647     46,590 39,458
Reportable Segment | Other program candidates and expenses                
Segment Reporting [Line Items]                
Research and development expense 6     174     224 1,057
Reportable Segment | Personnel expenses (including share-based compensation)                
Segment Reporting [Line Items]                
Research and development expense 2,862     1,078     8,606 3,012
Reportable Segment | Other expenses                
Segment Reporting [Line Items]                
Research and development expense $ 51     $ 198     $ 187 $ 346