Annual report pursuant to Section 13 and 15(d)

Asset Acquisition (Details)

v3.20.4
Asset Acquisition (Details)
shares in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Feb. 03, 2020
USD ($)
milestone
agreement
shares
Dec. 31, 2019
USD ($)
Mar. 31, 2020
USD ($)
agreement
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 05, 2019
USD ($)
Business Acquisition [Line Items]            
Intangible assets acquired       $ 900,000    
Useful life       10 months 24 days 1 year 10 months 24 days  
Acquired Assembled Workforce            
Business Acquisition [Line Items]            
Useful life       1 year 1 month 6 days 9 months 18 days  
Aevi            
Business Acquisition [Line Items]            
Forgiveness of loan   $ 4,100,000        
Aevi            
Business Acquisition [Line Items]            
Extended employment agreements | agreement 7   7      
Loan for exercise of exclusive license   $ 4,100,000     $ 4,100,000 $ 4,100,000
Consideration transferred, shares issued $ 15,500,000          
Shares issued (in shares) | shares 3.9          
Contingent consideration $ 6,500,000          
Transaction costs 1,500,000          
Fair value assigned to intangible asset at purchase 24,000,000.0          
Cash acquired 300,000          
Net liabilities assumed $ 5,100,000          
Useful life     2 years      
Number of contingent consideration milestones | milestone 2          
Aevi | Milestone One            
Business Acquisition [Line Items]            
Contingent consideration $ 2,000,000.0          
Aevi | Milestone Two            
Business Acquisition [Line Items]            
Contingent consideration 4,500,000          
Aevi | Acquired Assembled Workforce            
Business Acquisition [Line Items]            
Intangible assets acquired $ 900,000   $ 900,000      
Useful life 2 years     2 years