Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Warrants (Details)

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Stockholders' Equity - Warrants (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Warrant Liability [Roll Forward]    
Liability at December 31, 2021 $ 2,706  
Loss on change in value of warrant liability 534 $ 4,946
Liability at March 31, 2022 $ 3,240