| Condensed Balance Sheet [Table Text Block] |
| | | June 29, | | | December 29, | |
| | | 2025 | | | 2024 | |
| Inventories, net - current: | | | | | | | | |
| Work-in-process | | $ | 709 | | | $ | 710 | |
| Finished goods | | | 158 | | | | 230 | |
| | | | 867 | | | | 940 | |
| Inventories, net - non-current: | | | | | | | | |
| Work-in-process | | | 623 | | | | 690 | |
| Finished goods | | | 25 | | | | 28 | |
| | | | 648 | | | | 718 | |
| | | $ | 1,515 | | | $ | 1,658 | |
| Prepaid expenses and other current assets: | | | | | | | | |
| Prepaid taxes | | $ | 86 | | | $ | 498 | |
| Deferred charges | | | 400 | | | | 792 | |
| Other prepaid taxes, royalties, and other prepaid expenses | | | 332 | | | | 242 | |
| Other | | | 482 | | | | 134 | |
| | | $ | 1,300 | | | $ | 1,666 | |
| Property and equipment, net: | | | | | | | | |
| Equipment | | $ | 9,608 | | | $ | 9,598 | |
| Software tools | | | 3,077 | | | | 3,402 | |
| Tooling | | | 18,428 | | | | 14,357 | |
| Software | | | 1,776 | | | | 1,776 | |
| Furniture and fixtures | | | 54 | | | | 54 | |
| Leasehold improvements | | | 647 | | | | 647 | |
| | | | 33,590 | | | | 29,834 | |
| Less: Accumulated depreciation and amortization | | | (15,823 | ) | | | (14,135 | ) |
| | | $ | 17,767 | | | $ | 15,699 | |
| Capitalized internal-use software, net: | | | | | | | | |
| Capitalized internal-use software | | $ | 1,124 | | | $ | 798 | |
| Less: Accumulated amortization | | | (157 | ) | | | (87 | ) |
| | | $ | 967 | | | $ | 711 | |
| Accrued liabilities: | | | | | | | | |
| Accrued compensation | | $ | 687 | | | $ | 842 | |
| Accrued employee benefits | | | 80 | | | | 75 | |
| Accrued payroll tax | | | 61 | | | | 124 | |
| Other | | | 214 | | | | 546 | |
| | | $ | 1,042 | | | $ | 1,587 | |
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