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Income Taxes - Schedule of Reconciliation of Federal Statutory Income Tax Rate (Details)
3 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2020
Income Tax Disclosure [Abstract]    
Statutory rate 21.00% 21.00%
State tax   0.06%
General business credits   1.06%
Other permanent differences   (0.25%)
Change in valuation allowance (21.00%) (15.91%)
Change in fair value of tranche liability   (5.96%)
Income tax provision (benefit) 0.00% 0.00%