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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 28, 2025
Accounting Policies [Abstract] |
Schedule of Inventory | Schedule of Inventory
|  | September 28, 2025 |  |  | September 29, 2024 |
|  | (Thousands) |
|  | As of September 28, 2025 |  |  | As of September 29, 2024 |
Raw Materials |  | $ | 9,394 |  |  | $ | 9,460 |
Work in Process |  |  | 6,063 |  |  |  | 5,954 |
Finished Goods |  |  | 788 |  |  |  | 556 |
Gross Inventory |  |  | 16,245 |  |  |  | 15,970 |
Less: Inventory Reserves |  |  | (1,923 | ) |  |  | (1,107 | )
Net Inventory |  | $ | 14,322 |  |  | $ | 14,863 |
Schedule of Warranty Reserves | The table below summarizes the warranty expenses and incurred warranty costs for the twelve months ended September 28, 2025 and September 29, 2024. Schedule of Warranty Reserves
|  | 2025 |  |  | 2024 |
|  | (Thousands) Years ended |
|  | 2025 |  |  | 2024 |
Beginning balance |  | $ | 52 |  |  | $ | 75 |
Incurred costs for warranties satisfied during the period |  |  | - |  |  |  | (52 | )
Warranty Expenses: |  |  |  |  |  |  |  |
Warranties reserved for new product shipped during the period(1) |  |  | 152 |  |  |  | 106 |
Change in estimate for pre-existing warranty liabilities (2) |  |  | (42 | ) |  |  | (77 | )
Warranty Expense |  |  | 110 |  |  |  | 29 |
Ending balance |  | $ | 162 |  |  | $ | 52 |
| (1) | Warranty expenses accrued to cost of sales for shipped optical assemblies of $9 thousand (based on prior three months shipments of optical assemblies and the optical assembly historical warranty return rate) in addition to an expected warranty repair cost of $143 thousand for shipped day windows due to a glass cracking issue.
| (2) | Changes in estimated warranty liabilities recognized in cost of sales associated with: the period end customer returned warranty backlog, or the actual costs of repaired/replaced warranty units which were shipped to the customer during the year. During the twelve months ended September 28, 2025, the warranty return rate was below historical levels resulting in a favorable change in estimate during the period.

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483489/210-10-50-1 + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-8 + Details
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