Quarterly report pursuant to Section 13 or 15(d)

Licenses Acquired (Schedule of Research and Development for Licenses Acquired) (Details)

v3.21.1
Licenses Acquired (Schedule of Research and Development for Licenses Acquired) (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research and development - licenses acquired $ 126,000 $ 250,000
Aevitas [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research and development - licenses acquired 25,000 0
Licensing Agreements [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research and development - licenses acquired 126,000 250,000
Licensing Agreements [Member] | Mustang [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research and development - licenses acquired 0 250,000
Licensing Agreements [Member] | Aevitas [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research and development - licenses acquired 25,000  
Licensing Agreements [Member] | FBIO Acquisition Corp VIII [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research and development - licenses acquired 101,000  
Licensing Agreements [Member] | City of Hope (COH) [Member] | Mustang [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research and development - licenses acquired $ 0 $ 300,000