| Condensed Balance Sheet [Table Text Block] |
| | | June 28, | | | December 28, | |
| | | 2026 | | | 2025 | |
| Inventories, net - current: | | | | | | | | |
| Work-in-process | | $ | 911 | | | $ | 868 | |
| Finished goods | | | 103 | | | | 88 | |
| | | | 1,014 | | | | 956 | |
| Inventories, net - non-current: | | | | | | | | |
| Work-in-process | | | — | | | | 84 | |
| Finished goods | | | 8 | | | | 103 | |
| | | | 8 | | | | 187 | |
| | | $ | 1,022 | | | $ | 1,143 | |
| Prepaid expenses and other current assets: | | | | | | | | |
| Prepaid taxes | | $ | 73 | | | $ | 163 | |
| Deferred charges | | | 415 | | | | 348 | |
| Deferred cost of sales | | | 1,243 | | | | 217 | |
| Other prepaid taxes, royalties, and other prepaid expenses | | | 272 | | | | 478 | |
| Other | | | 231 | | | | 193 | |
| | | $ | 2,234 | | | $ | 1,399 | |
| Property and equipment, net: | | | | | | | | |
| Equipment | | $ | 11,326 | | | $ | 11,004 | |
| Software tools | | | 3,783 | | | | 3,661 | |
| Tooling | | | 19,254 | | | | 18,428 | |
| Software | | | 1,776 | | | | 1,776 | |
| Furniture and fixtures | | | 54 | | | | 54 | |
| Leasehold improvements | | | 647 | | | | 647 | |
| | | | 36,840 | | | | 35,570 | |
| Less: Accumulated depreciation and amortization | | | (19,406 | ) | | | (17,337 | ) |
| | | $ | 17,434 | | | $ | 18,233 | |
| Capitalized internal-use software, net: | | | | | | | | |
| Capitalized internal-use software | | $ | 1,711 | | | $ | 1,374 | |
| Less: Accumulated amortization | | | (384 | ) | | | (257 | ) |
| | | $ | 1,327 | | | $ | 1,117 | |
| Accrued liabilities: | | | | | | | | |
| Accrued compensation | | $ | 828 | | | $ | 1,459 | |
| Accrued employee benefits | | | 93 | | | | 79 | |
| Accrued payroll tax | | | 57 | | | | 35 | |
| Other | | | 246 | | | | 206 | |
| | | $ | 1,224 | | | $ | 1,779 | |
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