v3.26.1
Segments (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2026
USD ($)
segment
Mar. 31, 2025
USD ($)
Segment Reporting [Abstract]    
Number of operating segments | segment 1  
Number of reportable segments | segment 1  
Segment Reporting Information [Line Items]    
Research and development expense $ 20,925 $ 11,447
Net loss (27,232) (12,400)
Interest income 2,481 482
Investment accretion 73 13
Reportable Segment    
Segment Reporting Information [Line Items]    
General and administrative, excluding personnel expenses 4,608 1,050
General and administrative, personnel expenses (including share-based compensation) 4,329 418
Other segment items (2,630) (515)
Net loss (27,232) (12,400)
Interest income 2,500 500
Investment accretion 100  
Reportable Segment | VDPHL01    
Segment Reporting Information [Line Items]    
Research and development expense 17,188 9,278
Reportable Segment | VDMN    
Segment Reporting Information [Line Items]    
Research and development expense 149 1,118
Reportable Segment | VDMC    
Segment Reporting Information [Line Items]    
Research and development expense 26 7
Reportable Segment | VDAA    
Segment Reporting Information [Line Items]    
Research and development expense 1 1
Reportable Segment | Other program candidates and expenses    
Segment Reporting Information [Line Items]    
Research and development expense 0 80
Reportable Segment | Personnel expenses (including share-based compensation)    
Segment Reporting Information [Line Items]    
Research and development expense 3,476 879
Reportable Segment | Other expenses    
Segment Reporting Information [Line Items]    
Research and development expense $ 85 $ 84