| Line Item | Jun 28, 2026 | Mar 29, 2026 | Dec 28, 2025 | Sep 28, 2025 | Jun 29, 2025 | Mar 30, 2025 | Dec 29, 2024 | Sep 29, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Oct 1, 2023 | Jul 2, 2023 | Apr 2, 2023 | Jan 1, 2023 | Oct 2, 2022 | Jul 3, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | |||||||||||||||||
| YoY growth | +48.7% | +16.8% | -34.2% | -51.8% | -10.0% | ||||||||||||
| Cost of revenue | |||||||||||||||||
| Gross profit (loss) | |||||||||||||||||
| % of revenue | 43.9% | 36.5% | 18.1% | -23.3% | 25.9% | ||||||||||||
| Operating expenses: | |||||||||||||||||
| Research and development | |||||||||||||||||
| Selling, general and administrative | |||||||||||||||||
| Impairment charges | — | ||||||||||||||||
| Restructuring costs | |||||||||||||||||
| Total operating expenses | — | ||||||||||||||||
| % of revenue | 75.2% | 78.4% | — | 170.3% | 94.3% | ||||||||||||
| Operating income (loss) | |||||||||||||||||
| % of revenue | -31.3% | -41.9% | -93.5% | -193.5% | -68.4% | ||||||||||||
| Interest expense | |||||||||||||||||
| Interest income and other income (expense), net | |||||||||||||||||
| Gain on extinguishment of vendor payable | — | — | — | ||||||||||||||
| Income (loss) from continuing operations before income taxes | |||||||||||||||||
| (Benefit from) provision for income taxes | |||||||||||||||||
| Net income (loss) from continuing operations | |||||||||||||||||
| Net income (loss) | |||||||||||||||||
| % of revenue | -16.2% | -43.7% | -159.3% | -197.5% | -72.4% |