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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Summary of Net Deferred Tax Assets | Significant components of the Company’s net deferred tax assets consist of the following (in thousands):
|  | December 31, |
|  | 2022 |  |  | 2021 |
Deferred tax assets: |  |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 32,985 |  |  | $ | 31,826 |
Section 174 capitalized expense |  |  | 6,812 |  |  |  | — |
Research and development credits |  |  | 3,775 |  |  |  | 2,392 |
Lease liabilities |  |  | 1,096 |  |  |  | 1,521 |
Accrual and reserves |  |  | 739 |  |  |  | 590 |
Employee retention credits |  |  | 271 |  |  |  | 284 |
Stock-based compensation |  |  | 201 |  |  |  | 129 |
Capitalized intangible costs |  |  | 176 |  |  |  | 122 |
Fixed assets |  |  | 66 |  |  |  | — |
Other |  |  | 3 |  |  |  | 3 |
Gross deferred tax assets |  |  | 46,124 |  |  |  | 36,867 |
Less: valuation allowance |  |  | (45,343 | ) |  |  | (35,665 | )
Deferred tax assets, net of valuation allowance |  |  | 781 |  |  |  | 1,202 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Right-of-use assets |  |  | (686 | ) |  |  | (962 | )
Fixed assets |  |  | — |  |  |  | (101 | )
Other |  |  | (95 | ) |  |  | (139 | )
Gross deferred tax liabilities |  |  | (781 | ) |  |  | (1,202 | )
Total net deferred tax assets |  | $ | — |  |  | $ | — |
Summary of Unrecognized Tax Benefits | A reconciliation of the Company’s unrecognized tax benefits is as follows (in thousands):
|  | December 31, |
|  | 2022 |  |  | 2021 |
Balance at beginning of the year |  | $ | 974 |  |  | $ | 921 |
Additions based on tax positions related to current year |  |  | 654 |  |  |  | 480 |
Reductions based on tax positions of prior year |  |  | — |  |  |  | (427 | )
Balance at end of the year |  | $ | 1,628 |  |  | $ | 974 |
Schedule of Reconciliation of U.S. Federal Statutory Income Tax Rate TO Effective Income Tax Rate | A reconciliation of the statutory U.S. federal tax rate to the Company’s effective tax rate is as follows:
|  | December 31, |
|  | 2022 |  |  | 2021 |
Statutory rate |  |  | 21.00 | % |  |  | 21.00 | %
State tax |  |  | 2.12 |  |  |  | (2.78 | )
Tax credits |  |  | 1.72 |  |  |  | 1.70 |
Stock-based compensation |  |  | (2.26 | ) |  |  | — |
Change in valuation allowance |  |  | (26.88 | ) |  |  | (16.92 | )
NOL and tax credits limited under 382 |  |  | — |  |  |  | (2 | )
Gain on warrant liabilities |  |  | 4.60 |  |  |  | — |
Other |  |  | (0.30 | ) |  |  | (0.57 | )
Total |  |  | 0.00 | % |  |  | 0.00 | %

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319 + Details
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