Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Warrants (Details)

v3.21.2
Stockholders' Equity - Warrants (Details) - Warrants under National Securities, Inc Note
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 30, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
Class of Warrant or Right [Line Items]    
Beginning Balance (in shares) | shares 15,841  
Exercised (in shares) | shares (890)  
Ending Balance (in shares) | shares 14,951  
Aggregate Intrinsic Value | $ $ 19 $ 84
Weighted Average    
Class of Warrant or Right [Line Items]    
Beginning Balance (in dollars per shares) | $ / shares $ 0.6315  
Exercised (in dollars per share) | $ / shares 0.0001  
Ending Balance (in dollars per shares) | $ / shares $ 0.6691