Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.2.2
Clinical Trial and Sponsored Research Agreements (City of Hope - Licenses) (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]        
Research and development - licenses acquired $ 40 $ 630 $ 40 $ 1,630
Leiden University Medical Centre [Member]        
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]        
Upfront fees paid 0 400 0 400
Mayo Clinic [Member]        
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]        
Upfront fees paid 0 800 0 800
CD123 (MB-102) [Member] | City of Hope National Medical Center ("COH") [Member]        
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]        
Non-refundable milestone payments 0 300 0 300
PSCA (MB-105) [Member] | City of Hope National Medical Center ("COH") [Member]        
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]        
Non-refundable milestone payments $ 0 $ 300 $ 0 $ 300