Annual report pursuant to Section 13 and 15(d)

Income Taxes - Effective income tax rate (Details)

v3.22.1
Income Taxes - Effective income tax rate (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Reconciliation of the U.S. federal statutory income tax rate to the Company's effective income tax rate    
Federal statutory income tax rate 21.00% 21.00%
State income taxes, net of federal benefit 18.80% 3.90%
Federal and state research and development tax credits 9.70% 7.30%
Loss on extinguishment of debt (24.50%)  
Merger transaction costs (1.30%)  
Change in fair value of contingent earn-out liability and contingently issuable common stock liability 124.50%  
Change in fair value of derivative liability (3.40%)  
Non-deductible convertible notes interest (10.20%)  
Change in valuation allowance (138.10%) (33.70%)
Change in tax rate (0.50%) 1.30%
Stock-based compensation 4.30%  
Permanent differences (0.40%) (0.30%)
Other 0.10% 0.50%
Effective income tax rate 0.00% 0.00%