Annual report pursuant to Section 13 and 15(d)

Intangible assets, royalties and goodwill, Estimated Future Amortization of Amortizable Intangible Assets (Details)

v3.20.1
Intangible assets, royalties and goodwill, Estimated Future Amortization of Amortizable Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Intangible assets, royalties and goodwill [Abstract]    
Remaining weighted average useful life 10 years  
Estimated Future Amortization of Amortizable Intangible Assets [Abstract]    
2020 $ 1,551  
2021 1,551  
2022 1,551  
2023 1,551  
2024 1,551  
Thereafter 6,886  
Total intangible assets, net $ 14,641 $ 0