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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Tax Disclosure [Abstract] |
A reconciliation of income tax benefit to the amount computed by applying the Federal income tax rate to loss before provision for income taxes as of December 31, 2024 and 2023 is as follows: | A reconciliation of income tax benefit to the amount computed by applying the Federal income tax rate to loss before provision for income taxes as of December 31, 2024 and 2023 is as follows:
|  | 2024 |  |  | 2023 |
Income tax credit at statutory rates |  | $ | 937 |  |  | $ | (921 | )
Under accrual of income taxes |  |  | (1 | ) |  |  | (3 | )
Nondeductible expenses |  |  | 5 |  |  |  | 23 |
Record tax credits |  |  | (116 | ) |  |  | (118 | )
Permanent tax deduction stock options exercised |  |  | (27 | ) |  |  | (63 | )
State income tax, net of federal benefits |  |  | 179 |  |  |  | (165 | )
Expiration of net operating losses and credits |  |  | 332 |  |  |  | 1,492 |
Effect of change in deferred tax rate |  |  | 49 |  |  |  | 45 |
Expiration of stock options |  |  | 46 |  |  |  | 60 |
Other |  |  | (39 | ) |  |  | — |
Change in valuation allowance |  |  | (1,138 | ) |  |  | (344 | )
|  | $ | 227 |  |  | $ | 6 |
Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of our deferred income taxes consist of the following: | Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of our deferred income taxes consist of the following:
|  | As of December 31, |
|  | 2024 |  |  | 2023 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Excess tax depreciation |  | $ | (496 | ) |  |  | (477 | )
ASC 842 operating lease asset |  |  | (1,938 | ) |  |  | (1,975 | )
Total deferred tax liabilities |  |  | (2,434 | ) |  |  | (2,452 | )
Deferred tax assets: |  |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 10,218 |  |  | $ | 12,020 |
179 Carryforwards |  |  | — |  |  |  | 245 |
163(j) Business interest limitation carryforwards |  |  | — |  |  |  | 302 |
Inventory and other allowances |  |  | 764 |  |  |  | 239 |
Excess book amortization |  |  | 60 |  |  |  | 60 |
174 research and experimental expenditures |  |  | 1,053 |  |  |  | 902 |
Share-based compensation |  |  | 788 |  |  |  | 530 |
Tax credits |  |  | 189 |  |  |  | 118 |
ASC 842 operating lease liability |  |  | 2,520 |  |  |  | 2,610 |
Other accrued costs |  |  | 293 |  |  |  | 13 |
Total deferred tax assets |  |  | 15,885 |  |  |  | 17,039 |
Less: valuation allowance |  |  | (13,451 | ) |  |  | (14,587 | )
Deferred income taxes |  | $ | — |  |  | $ | — |

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