v3.26.1
Segment Information - Schedule of Segment expenses reviewed by the CDMO (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting Information [Line Items]        
Collaboration and other revenue $ 6,500 $ 0 $ 6,500 $ 0
Research and development expense 3,342 13,684 7,924 26,039
General and administrative expense 2,931 4,963 7,657 10,222
Interest and other income (expense) 225 (64) 3,189 2,216
Net income (loss) and comprehensive income (loss) 452 (18,711) (5,892) (34,045)
Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Collaboration and other revenue 6,500 0 6,500 0
Research and development expense 3,342 13,684 7,924 26,039
General and administrative expense 2,931 4,963 7,657 10,222
Interest and other income (expense) 225 (64) 3,189 2,216
Net income (loss) and comprehensive income (loss) 452 (18,711) (5,892) (34,045)
Operating Segments [Member] | Personnel and related        
Segment Reporting Information [Line Items]        
Research and development expense 481 2,145 2,248 5,603
General and administrative expense 727 1,577 1,910 3,680
Operating Segments [Member] | Equity-based compensation        
Segment Reporting Information [Line Items]        
Research and development expense 135 567 457 1,342
General and administrative expense 485 810 1,119 1,680
Operating Segments [Member] | Facilities and other        
Segment Reporting Information [Line Items]        
Research and development expense 373 804 1,034 1,718
General and administrative expense 1,719 2,576 4,628 4,862
Operating Segments [Member] | Total program expenses        
Segment Reporting Information [Line Items]        
Research and development expense 2,353 10,168 4,185 17,376
Operating Segments [Member] | BA3182 | Total program expenses        
Segment Reporting Information [Line Items]        
Research and development expense 322 2,136 2,141 3,076
Operating Segments [Member] | Other CAB Programs | Total program expenses        
Segment Reporting Information [Line Items]        
Research and development expense $ 2,031 $ 8,032 $ 2,044 $ 14,300