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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2021
Income Tax Disclosure [Abstract] |
Schedule of Income Before Income Taxes | For financial reporting purposes, income before income taxes includes the following components (in thousand):
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Domestic |  | $ | (101,878 | ) |  | $ | (25,570 | ) |  | $ | (19,594 | )
Foreign |  |  | — |  |  |  | — |  |  |  | — |
Income (loss) before income taxes |  | $ | (101,878 | ) |  | $ | (25,570 | ) |  | $ | (19,594 | )
Summary of Reconciliation Federal Income Tax Rate | Reconciliation between the effective tax rate on income from continuing operations and the statutory tax rate of 21% is as follows:
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
U.S. federal provision at statutory rate |  |  | 21.0 | % |  |  | 21.0 | % |  |  | 21.0 | %
Tax credits |  |  | 2.2 | % |  |  | 2.0 | % |  |  | 1.1 | %
Stock-based compensation |  |  | 3.9 | % |  |  | (1.3 | )% |  |  | (2.3 | )%
Section 162(m) |  |  | (1.4 | )% |  |  | — |  |  |  | — |
Change in valuation allowance |  |  | (26.2 | )% |  |  | (21.6 | )% |  |  | (19.9 | )%
Other |  |  | 0.5 | % |  |  | (0.1 | )% |  |  | 0.1 | %
Effective tax rate |  |  | 0.0 | % |  |  | 0.0 | % |  |  | 0.0 | %
Schedule of Net Deferred Tax Assets and Liabilities | The Company’s deferred income tax assets and liabilities as of December 31, 2021 and 2020 were as follows (in thousands):
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |
Deferred tax assets: |  |  |  |  |  |
Net operating loss carry forward |  | $ | 38,933 |  |  | $ | 13,405 |
Tax credits |  |  | 5,681 |  |  |  | 2,151 |
Intangibles |  |  | 3,147 |  |  |  | - |
Other |  |  | 143 |  |  |  | 399 |
Stock-based compensation |  |  | 3,482 |  |  |  | 594 |
Lease liability |  |  | 2,824 |  |  |  | - |
Accruals and reserves |  |  | 537 |  |  |  | 80 |
Total deferred tax assets before valuation allowance |  |  | 54,747 |  |  |  | 16,629 |
Valuation allowance |  |  | (51,832 | ) |  |  | (16,464 | )
Total deferred tax assets |  |  | 2,915 |  |  |  | 165 |
Deferred tax liabilities: |  |  |  |  |  |
Right of use assets |  |  | (2,812 | ) |  |  | — |
Fixed assets |  |  | (103 | ) |  |  | (165 | )
Total deferred tax liabilities |  |  | (2,915 | ) |  |  | (165 | )
Net deferred tax assets (liabilities) |  | $ | — |  |  | $ | — |
Schedule of Unrecognized Tax Benefits | The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Unrecognized tax benefits as of the beginning of the year |  | $ | 1,934 |  |  | $ | 1,088 |  |  | $ | 415 |
Increase related to prior year tax provisions |  |  | 107 |  |  |  | — |  |  |  | — |
Decrease related to prior year tax provisions |  |  | — |  |  |  | — |  |  |  | — |
Increase related to current year tax provisions |  |  | 2,661 |  |  |  | 846 |  |  |  | 673 |
Statue lapse |  |  | — |  |  |  | — |  |  |  | — |
Unrecognized tax benefits as of the end of the year |  | $ | 4,702 |  |  | $ | 1,934 |  |  | $ | 1,088 |

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