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Redeemable Convertible Preferred Stock Tranche Liability - Schedule of Additional Closing Liability Assuming under The Option-Pricing Method (Details)
12 Months Ended
Dec. 31, 2020
$ / shares
December 31, 2018  
Temporary Equity [Line Items]  
Fair Value of Series A Preferred Stock $ 10.48
Term 1 year 10 months 17 days
Interest rate 2.50%
Volatility 69.80%
July 25, 2019  
Temporary Equity [Line Items]  
Fair Value of Series A Preferred Stock $ 7.18
Term 1 year 3 months 21 days
Interest rate 1.95%
Volatility 69.10%