Quarterly report pursuant to Section 13 or 15(d)

Warrants - Change in warrant derivative liability (Details)

v3.21.2
Warrants - Change in warrant derivative liability (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Warrant Derivative Liability [Roll Forward]    
Balance, beginning of period $ 0 $ 2,220
Change in fair value of warrant derivative liability 0 (2,220)
Balance, end of period $ 0 $ 0