General form of registration statement for all companies including face-amount certificate companies

Intangible assets, royalties and goodwill - Additional information (Q3) (Details)

v3.20.2
Intangible assets, royalties and goodwill - Additional information (Q3) (Details) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Jan. 13, 2020
May 31, 2019
Apr. 30, 2019
Sep. 30, 2020
Dec. 31, 2019
Jun. 24, 2020
Jun. 23, 2020
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]                
Common stock or units, issued (in shares)       49,139,708 47,977,390     11,661,485
Warrants, exercise price (in dollars per share)           $ 4.25 $ 5.00  
ABG Notes                
Finite-Lived Intangible Assets [Line Items]                
Face amount $ 600,000              
Long-term debt, interest rate 10.00%     10.00%        
Customer relationships | Halo                
Finite-Lived Intangible Assets [Line Items]                
Estimated useful lives of intangible assets       7 years 7 years      
Trade name | Halo                
Finite-Lived Intangible Assets [Line Items]                
Estimated useful lives of intangible assets       15 years 15 years      
Licensing Agreements                
Finite-Lived Intangible Assets [Line Items]                
Payment of upfront fees in equity   $ 1,000,000.0 $ 1,000,000          
Termination fee paid $ 100,000              
Common stock or units, issued (in shares) 72,720              
Termination fee payable $ 100,000              
Fair value of warrants issued 150,000              
Total cost of contract termination 1,100,000              
Licensing Agreements | ABG Notes                
Finite-Lived Intangible Assets [Line Items]                
Notes, fair value $ 600,000              
Licensing Agreements | ABG Warrants                
Finite-Lived Intangible Assets [Line Items]                
Term of warrants 24 months              
Warrants, exercise price (in dollars per share) $ 5.00         $ 4.25 $ 5.00  
Warrants, fair value (less than) $ 100,000