v3.25.0.1

Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2023
Income Taxes |
Schedule of income tax expense (benefit) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31,
​ |  | 2023 |  | 2022
Deferred: | ​ | ​ | ​ | ​ | ​
Federal | ​ | $ | — | ​ | $ | (293)
State | ​ | ​ | — | ​ | ​ | (76)
Foreign | ​ | ​ | 28 | ​ | ​ | (54)
Deferred income tax benefit | ​ | ​ | 28 | ​ | ​ | (423)
Current: | ​ | ​ | ​ | ​ | ​ | ​
Federal | ​ | ​ | — | ​ | ​ | 30
State | ​ | ​ | 7 | ​ | ​ | 9
Foreign | ​ | ​ | 17 | ​ | ​ | 4
Total income tax expense (benefit), net | ​ | $ | 52 | ​ | $ | (380)
Schedule of effective tax rate reconciliation | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31, |
​ |  | 2023 |  | 2022 | ​
Income tax benefit at U.S. federal statutory rate | ​ |  | 21.0 | % | ​ | 21.0 | %
State income tax benefit, net of federal benefit | ​ | ​ | 5.9 | % | ​ | 3.8 | %
Stock warrant valuation | ​ | ​ | 9.7 | % | ​ | — | %
Other permanent differences | ​ |  | (2.2) | % | ​ | (1.9) | %
Change in state tax rate | ​ | ​ | 4.3 | % | ​ | 0.3 | %
Foreign rate differential | ​ | ​ | 2.7 | % | ​ | (0.2) | %
Net operating loss true up | ​ | ​ | (6.3) | % | ​ | — | %
Other adjustments | ​ | ​ | (0.8) | % | ​ | 2.8 | %
Change in valuation allowance | ​ |  | (34.8) | % | ​ | (25.0) | %
Effective income tax rate | ​ |  | (0.5) | % | ​ | 0.8 | %
Schedule of reconciliation of amounts of uncertain tax positions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022
Uncertain gross tax positions, January 1 | ​ | $ | 1,052 | ​ | $ | 1,052
Current year tax positions | ​ | ​ | — | ​ | ​ | —
Increase in prior year tax positions | ​ | ​ | — | ​ | ​ | —
Settlements | ​ | ​ | — | ​ | ​ | —
Lapse of statute of limitations | ​ | ​ | — | ​ | ​ | —
Uncertain gross tax positions, December 31 | ​ | $ | 1,052 | ​ | $ | 1,052
Schedule of components of deferred tax assets and liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31,
​ | ​ | 2023 |  | 2022
Deferred tax assets: |  | ​ |  |  | ​
Start-up costs | ​ | $ | 1,096 | ​ | $ | 1,137
Capitalized research and development costs | ​ |  | 170 | ​ |  | 272
Reserves and accruals | ​ |  | 751 | ​ |  | 1,157
Property and equipment | ​ | ​ | 56 | ​ | ​ | —
Intangible assets | ​ | ​ | 4,420 | ​ | ​ | 4,597
Research and development credit | ​ |  | 2,492 | ​ |  | 2,492
Lease liability | ​ | ​ | 70 | ​ | ​ | 43
Net operating loss carryforwards | ​ | ​ | 67,930 | ​ | ​ | 63,424
State and local taxes | ​ | ​ | 2 | ​ | ​ | 2
Total gross deferred tax assets | ​ |  | 76,987 | ​ |  | 73,124
Valuation allowance | ​ |  | (76,895) | ​ |  | (72,945)
Deferred tax assets, net of valuation allowance | ​ | ​ | 92 | ​ | ​ | 179
Property and equipment | ​ | ​ | — | ​ | ​ | (80)
Intangible assets | ​ | ​ | — | ​ | ​ | —
Operating lease right-of-use assets | ​ | ​ | (64) | ​ | ​ | (43)
Total gross deferred tax liabilities | ​ | ​ | (64) | ​ | ​ | (123)
Deferred income taxes, net | ​ | $ | 28 | ​ | $ | 56

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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://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + 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://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + 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://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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