Quarterly report pursuant to Section 13 or 15(d)

Licenses Acquired - License as recorded in the Condensed Consolidated Statements of Operations (Details)

v3.20.1
Licenses Acquired - License as recorded in the Condensed Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Total Research and Development - Licenses Acquired $ 250 $ 450
Mustang [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Total Research and Development - Licenses Acquired $ 250 $ 450