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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of Loss before Income Tax, Domestic and Foreign | The following table sets forth pretax book loss (in thousands):
| Year Ended December 31,
| 2023 |  | 2022
United States | $ | (4,357) |  |  | $ | (21,948) |
Foreign | — |  |  | — |
Total | $ | (4,357) |  |  | $ | (21,948) |
Schedule of Components of Income Tax (Benefit) Expense | The following table sets forth income before taxes and the income tax expense for the years ended December 31, 2023 and 2022 (in thousands):
| Year Ended December 31,
| 2023 |  | 2022
Current: |  |  |
Federal | $ | — |  |  | $ | — |
Foreign | 15 |  |  | (4) |
State | 12 |  |  | (3) |
Total current | 27 |  |  | (7) |
Total deferred | — |  |  | — |
Income tax expense (benefit) | $ | 27 |  |  | $ | (7) |
Schedule of Effective Income Tax Rate Reconciliation | Our effective tax rate differs from the statutory federal tax rate for the years ended December 31, 2023 and 2022 as shown in the following table (in thousands):
| Year Ended December 31,
| 2023 |  | 2022
U.S. federal income taxes at the statutory rate | $ | (915) |  |  | $ | (4,609) |
Goodwill impairment | — |  |  | 1,547 |
State taxes, net of federal effects | (58) |  |  | (375) |
U.S. Federal and state NOL carryforward adjustment for expired NOLs | 613 |  |  | 76 |
Stock compensation plan adjustments | 385 |  |  | 16 |
Change in valuation allowance | (112) |  |  | 3,273 |
Other | 114 |  |  | 65 |
Income tax expense (benefit) | $ | 27 |  |  | $ | (7) |
Schedule of Deferred Tax Assets and Liabilities | The tax effect of the temporary differences that give rise to significant portions of the deferred tax assets and liabilities as of December 31, 2023 and 2022 is presented below (in thousands):
| Year Ended December 31,
| 2023 |  | 2022
Deferred tax assets (liabilities): |  |  |
Tax benefit of operating loss carry forward - Federal | $ | 29,416 |  |  | $ | 28,459 |
Tax benefit of operating loss carry forward - State | 5,965 |  |  | 6,429 |
Accrued expenses | 131 |  |  | 147 |
Deferred revenue | 36 |  |  | 129 |
Stock-based compensation | 56 |  |  | 420 |
Fixed assets | 4 |  |  | 116 |
Goodwill | — |  |  | 28 |
Inventory | 156 |  |  | 106 |
Intangible amortization | 32 |  |  | (80) |
Section 174 research and experimentation | — |  |  | 409 |
Section 163(j) interest expense | 314 |  |  | — |
R&D credit | 2,154 |  |  | 2,154 |
Texas margin tax temporary credit | 55 |  |  | 74 |
Other | 61 |  |  | 101 |
Total deferred tax asset, net of deferred tax liabilities | 38,380 |  |  | 38,492 |
Valuation allowance | (38,380) |  |  | (38,492) |
Net deferred tax asset | $ | — |  |  | $ | — |

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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 -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 9 -Section 50 -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://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 2 -Section 50 -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://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 12 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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