| Line Item | Sep 30, 2025 | Sep 30, 2024 | Sep 30, 2023 | Sep 30, 2022 | Sep 30, 2021 | Sep 30, 2020 | Sep 30, 2019 |
|---|---|---|---|---|---|---|---|
| UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF (LOSS) INCOME AND COMPREHENSIVE (LOSS) INCOME | |||||||
| Revenue | — | ||||||
| Revenues | |||||||
| YoY growth | -30.2% | ||||||
| Cost of revenues | |||||||
| Gross profit | |||||||
| % of revenue | 1.8% | ||||||
| Operating expenses: | |||||||
| (Allowance) reversal of allowance for credit losses | |||||||
| Selling expenses | |||||||
| General and administrative expenses | |||||||
| Research and development expenses | |||||||
| Total operating expenses | |||||||
| % of revenue | -32.7% | ||||||
| (Loss) income from operations | |||||||
| % of revenue | -30.9% | ||||||
| Other (expenses) income: | |||||||
| Interest expense | |||||||
| Amortization of debt issuance costs | |||||||
| Interest Income | |||||||
| Non-Operating Income (Expense) | |||||||
| Total other (expenses) income, net | |||||||
| (Loss) income before income taxes | |||||||
| Income tax expenses | |||||||
| Net (loss) income | |||||||
| % of revenue | -31.3% | ||||||
| Other comprehensive income (loss) : | |||||||
| Foreign currency translation gain (loss) | — | ||||||
| Comprehensive (loss) income | |||||||
| Earnings Per Share | |||||||
| Earnings Per Share (Basic) | |||||||
| Earnings Per Share (Diluted) |