v3.26.1
Segment Information - Summary of Research and Development, General and Administrative Expenses, and Restructuring Charges are Significant Segment Expenses (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Research and development $ 10 $ (14) $ 59 $ 8
General and administrative 828 800 1,892 1,636
Restructuring and other charges 174 (9) 380 31
Clinical research and external costs        
Segment Reporting [Line Items]        
Research and development 13 10 66 15
Restructuring and other charges 0 (21) 0 (17)
Facility and all other costs        
Segment Reporting [Line Items]        
Research and development (3) 0 (7) 0
General and administrative 42 53 89 116
Restructuring and other charges 0 (68) 0 (80)
Compensation and benefits        
Segment Reporting [Line Items]        
Research and development 0 (24) 0 (7)
General and administrative 114 149 236 294
Restructuring and other charges 66 61 131 109
Consulting and professional services        
Segment Reporting [Line Items]        
General and administrative 672 598 1,567 1,226
Restructuring and other charges $ 108 $ 19 $ 249 $ 19