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Clinical Trial and Sponsored Research Agreements (City of Hope - Sponsored Research and Clinical Trial Agreements) (Narrative) (Details)

v3.24.4
Clinical Trial and Sponsored Research Agreements (City of Hope - Sponsored Research and Clinical Trial Agreements) (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jul. 03, 2017
Jun. 30, 2024
Apr. 30, 2024
Nov. 30, 2022
Jan. 31, 2022
Nov. 30, 2020
Oct. 31, 2020
Feb. 28, 2017
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
License, Clinical Trial and Sponsored Research Agreements                            
Research and development expense                 $ 57 $ 9,527 $ 8,221 $ 34,363 $ 40,513 $ 62,475
Research and development                            
License, Clinical Trial and Sponsored Research Agreements                            
Forgiveness of all amounts previously owed                     $ 900      
Mayo Clinic                            
License, Clinical Trial and Sponsored Research Agreements                            
Forgiveness of all amounts previously owed   $ 300                        
St. Jude Children's Research Hospital                            
License, Clinical Trial and Sponsored Research Agreements                            
Forgiveness of all amounts previously owed     $ 600                      
IL13Ra2 CAR and (C134)                            
License, Clinical Trial and Sponsored Research Agreements                            
Research and development expense       $ 600     $ 300              
Clinical trial and sponsored research agreements | IL13Ra2 (MB-101) | City of Hope National Medical Center                            
License, Clinical Trial and Sponsored Research Agreements                            
Contribution toward patient costs               $ 100            
Contribution per patient             100              
Annual maintenance fee payable             $ 200              
Clinical trial and sponsored research agreements | CD20 (MB-106) | Fred Hutchinson Cancer Center                            
License, Clinical Trial and Sponsored Research Agreements                            
Contribution toward patient costs           $ 800                
Milestones payable $ 5,300                          
Additional milestone payments         $ 2,200 $ 1,800                
Clinical trial and sponsored research agreements | CD20 (MB-106) | Fred Hutchinson Cancer Center | Maximum                            
License, Clinical Trial and Sponsored Research Agreements                            
Additional milestone payments         $ 9,300