| Line Item | Jun 30, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | — | ||||||||||||||
| YoY growth | -89.3% | — | -56.7% | ||||||||||||
| Costs and Expenses: | |||||||||||||||
| Restructuring Expense | |||||||||||||||
| Research and Development Expense | |||||||||||||||
| Selling, General and Administrative Expense | |||||||||||||||
| Depreciation Expense | |||||||||||||||
| Other Expense | — | — | |||||||||||||
| Operating loss | |||||||||||||||
| % of revenue | -476.1% | — | 133.7% | ||||||||||||
| Gain from deconsolidation of a subsidiary | — | — | |||||||||||||
| Non-Operating Income (Expense) | — | — | |||||||||||||
| Income (loss) from continuing operations, before taxes | |||||||||||||||
| Income Tax Expense | |||||||||||||||
| Net income (loss) from continuing operations | — | — | |||||||||||||
| Net income (loss) | |||||||||||||||
| % of revenue | 824.9% | — | 145.5% | ||||||||||||
| Net Income Attributable to Noncontrolling Interest | |||||||||||||||
| Net income (loss) attributable to shareholders of Quantum X Labs Inc. | |||||||||||||||
| % of revenue | 848.1% | — | 124.9% | ||||||||||||
| Net loss from discontinued operations attributable to: | |||||||||||||||
| Basic | |||||||||||||||
| Diluted |