Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail)

v3.22.1
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Income Tax Contingency [Line Items]    
Tax benefit at federal statutory rate (21.00%) (21.00%)
State income taxes (5.80%) (6.70%)
Permanent differences:    
Stock-based compensation 1.80% 3.60%
Executive compensation 1.60% (1.20%)
Change in effective tax rate   (0.10%)
Effective income tax rate 0.00% 0.00%
State and Local Jurisdiction [Member]    
Permanent differences:    
Effective income tax rate reconciliation, prior year income taxes, percent   0.10%
Effective income tax rate reconciliation, tax credit, research, percent (1.10%) (1.30%)
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, percent 6.90% 8.00%
Domestic Tax Authority [Member]    
Permanent differences:    
Effective income tax rate reconciliation, tax credit, research, percent (1.60%) (2.00%)
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, percent 19.20% 20.60%