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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Taxes |
Schedule of provision for income taxes | The provision for income taxes consists of the following:
|  | Year Ended
|  | December 31,
|  | 2020 |  | 2019 |  | 2018
Current: |  |  |  |  |  |  |  |  |
Federal |  | $ | — |  | $ | — |  | $ | —
State |  |  | 115 |  |  | — |  |  | —
Total Current |  |  | 115 |  |  | — |  |  | —
Deferred: |  |  |  |  |  |  |  |  |
Federal |  |  | — |  |  | — |  |  | —
State |  |  | — |  |  | — |  |  | —
Total Deferred |  |  | — |  |  | — |  |  | —
Provision for income taxes |  | $ | 115 |  | $ | — |  | $ | —
Schedule of reconciliation of the effective tax rate to the statutory U.S. federal rate | A reconciliation of the Company’s effective tax rate to the statutory U.S. federal rate of 21% is as follows:
|  | Year Ended December 31,
|  | 2020 |  | 2019 |  | 2018
U.S. Federal provision (benefit) |  |  | ​ |  |  | ​ |  |  |
At statutory rate |  | $ | (25,693) |  | $ | (5,956) |  | $ | (5,608)
State taxes |  |  | 90 |  |  | — |  |  | —
Valuation allowance |  |  | 26,245 |  |  | 6,320 |  |  | 5,671
Stock based compensation |  |  | (7,257) |  |  | (182) |  |  | (141)
Permanent differences |  |  | 6,730 |  |  | (182) |  |  | 78
Total |  | $ | 115 |  | $ | — |  | $ | —
Schedule of significant components of the deferred tax assets and liabilities for federal and state income taxes |
|  | December 31,
|  | 2020 |  | 2019
Deferred tax assets: |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 47,864 |  | $ | 21,309
Stock-based compensation |  |  | 2,492 |  |  | 1,646
Reserves and accruals |  |  | 1,239 |  |  | 513
Other |  |  | 291 |  |  | 2
Total deferred tax assets |  | $ | 51,886 |  | $ | 23,470
Less: valuation allowance |  |  | (51,859) |  |  | (23,455)
Deferred tax assets, net of valuation allowance |  | $ | 27 |  | $ | 15
Deferred tax liabilities: |  |  |  |  |  |
Fixed assets |  |  | (27) |  |  | (15)
Total deferred tax liabilities |  | $ | (27) |  | $ | (15)
Net deferred tax assets |  | $ | — |  | $ | —

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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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 http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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