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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Schedule of Components of Income Tax Expense (Benefit) | The provision for income taxes from continuing operations consists of the following for the fiscal years indicated: Schedule of Components of Income Tax Expense (Benefit)
|  |  | 2022 |  |  |  | 2021 |  |  |  | 2020 |
|  |  | Fiscal Year |
|  |  | 2022 |  |  |  | 2021 |  |  |  | 2020 |
Current |  |  |  |  |  |  |  |  |  |  |  |
State |  | $ | — |  |  | $ | 1,000 |  |  | $ | — |
Foreign |  |  | 144,000 |  |  |  | 128,000 |  |  |  | 129,000 |
Total current provision |  |  | 144,000 |  |  |  | 129,000 |  |  |  | 129,000 |
Deferred |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 1,073,000 |  |  |  | (3,367,000 | ) |  |  | (1,075,000 | )
State |  |  | (1,561,000 | ) |  |  | (928,000 | ) |  |  | (321,000 | )
Foreign |  |  | 74,000 |  |  |  | 318,000 | ) |  |  | (19,000 | )
Change in valuation allowance |  |  | 414,000 |  |  |  | 3,977,000 |  |  |  | 1,415,000 |
Total deferred provision |  |  | — |  |  |  | — |  |  |  | — |
Total provision for income taxes |  | $ | 144,000 |  |  | $ | 129,000 |  |  | $ | 129,000 |
Schedule of Unrecognized Tax Benefit | The following table sets forth the changes in the Company’s balance of unrecognized tax benefits for the year ended: Schedule of Unrecognized Tax Benefit
|  | Total |
Unrecognized tax benefits at December 26, 2020 |  | $ | 394,000 |
Gross increases—prior year tax positions |  |  | — |
Unrecognized tax benefits at December 25, 2021 |  |  | 394,000 |
Gross increases—current year tax positions |  |  | — |
Unrecognized tax benefits at December 31, 2022 |  | $ | 394,000 |
Schedule of Effective Income Tax Rate Reconciliation | Schedule of Effective Income Tax Rate Reconciliation
|  |  | 2022 |  |  |  | 2021 |  |  |  | 2020 |
|  |  | Fiscal Year |
|  |  | 2022 |  |  |  | 2021 |  |  |  | 2020 |
Tax provision at federal statutory rates |  | $ | (4,029,000 | ) |  | $ | (2,787,000 | ) |  | $ | (925,000 | )
State tax liability |  |  | — |  |  |  | — |  |  |  | — |
Foreign deferred tax rate differential |  |  | (8,000 | ) |  |  | (55,000 | ) |  |  | (38,000 | )
Permanent items |  |  | 5,262,000 |  |  |  | (79,000 | ) |  |  | 238,000 |
Increase in net state operating loss carryforwards |  |  | (987,000 | ) |  |  | (911,000 | ) |  |  | (233,000 | )
Utilization of net operating losses for U.K. research and development refund |  |  | (24,000 | ) |  |  | (134,000 | ) |  |  | (151,000 | )
Provision to tax return adjustments and tax rate change |  |  | (36,000 | ) |  |  | (69,000 | ) |  |  | (180,000 | )
Tax credits |  |  | (441,000 | ) |  |  | (261,000 | ) |  |  | 9,000 |
Equity compensation |  |  | (188,000 | ) |  |  | 326,000 |  |  |  | (121,000 | )
Uncertain tax position for transfer pricing |  |  | 143,000 |  |  |  | 128,000 |  |  |  | 129,000 |
Other, net |  |  | 38,000 |  |  |  | (6,000 | ) |  |  | (14,000 | )
Change in valuation allowance |  |  | 414,000 |  |  |  | 3,977,000 |  |  |  | 1,415,000 |
Total provision |  | $ | 144,000 |  |  | $ | 129,000 |  |  | $ | 129,000 |
Schedule of Deferred Tax Assets and Liabilities | Schedule of Deferred Tax Assets and Liabilities
|  |  | 2022 |  |  |  | 2021 |
|  |  | Fiscal Year |
|  |  | 2022 |  |  |  | 2021 |
Deferred tax liability: |  |  |  |  |  |  |  |
Foreign withholding liability |  | $ | (483,000 | ) |  | $ | (513,000 | )
Deferred tax assets: |  |  |  |  |  |  |  |
Federal net operating loss carryforwards |  |  | 46,618,000 |  |  |  | 49,609,000 |
State net operating loss carryforwards |  |  | 7,381,000 |  |  |  | 6,393,000 |
Foreign net operating loss carryforwards |  |  | 942,000 |  |  |  | 994,000 |
Equity awards |  |  | 34,000 |  |  |  | 222,000 |
Tax credits |  |  | 9,854,000 |  |  |  | 9,413,000 |
R&D expense amortization |  |  | 1,900,000 |  |  |  | — |
Property, plant and equipment |  |  | 624,000 |  |  |  | 620,000 |
Unrealized losses on investments |  |  | 1,406,000 |  |  |  | 2,834,000 |
Other |  |  | 2,611,000 |  |  |  | 872,000 |
Net deferred tax assets |  |  | 70,887,000 |  |  |  | 70,444,000 |
Valuation allowance |  |  | (71,370,000 | ) |  |  | (70,957,000 | )
Deferred tax assets, net |  | $ | (483,000 | ) |  | $ | (513,000 | )

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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 https://asc.fasb.org/extlink&oid=121826272&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 https://asc.fasb.org/extlink&oid=121826272&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 https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of unrecognized tax benefits for which a material change is reasonably possible in the next twelve months, typically including the nature of the uncertainty, the event(s) that could cause a material change, and an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made. An unrecognized tax benefit is the difference between a tax position taken in a tax return and the amounts recognized in the financial statements for which it is more likely than not, based on the technical merits of the position, that the tax position will not be sustained upon examination. + References Reference 1: 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 + Details
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