Annual report pursuant to Section 13 and 15(d)

Warrant derivative liability, Fair value of derivative liabilities (Details)

v3.20.1
Warrant derivative liability, Fair value of derivative liabilities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Warrant Liability [Abstract]    
Assumption of warrants in May Acquisitions $ 2,130  
Change in fair value of warrant derivative liability 90 $ 0
Balance as of December 31, 2019 $ 2,220 $ 0