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Summary of Significant Accounting Policies (Details) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2024 USD ($) | Mar. 31, 2024 CNY (¥) | Mar. 31, 2024 HKD ($) | Sep. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Mar. 31, 2024 CNY (¥) | Sep. 30, 2022 USD ($)
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Accounts receivables written off | $ 12,729 |  |  | $ 7,263 |  |  |
Allowance for uncollectible balances | 13,606 |  |  | 13,465 |  |  |
Administration costs | 2,600 | ¥ 18,600,000 |  |  |  |  |
Contract cost capitalized and amortize | 2,600 |  |  |  |  | ¥ 18,600,000 |
Selling expense | 173,125 |  |  |  | $ 408,490 |  |
Contract assets | 448,187 |  |  | 423,532 |  |  |
Deferred revenue | 2,751,584 |  |  | 3,988,699 |  |  |
Refund liability | 250,556 |  |  | 333,030 |  |  |
Government subsidies income | 278 |  |  |  | 860,079 |  |
Advertising expenses | $ 116,853 |  |  |  | 149,379 |  |
VAT rates range | 13.00% | 13.00% | 13.00% |  |  |  |
Tax benefit percentage | 50.00% | 50.00% | 50.00% |  |  |  |
Unrecognized tax benefits | $ 2,806,694 |  |  | 2,639,258 |  |  | $ 2,573,830
Cash | 2,087,081 |  |  |  |  |  |
Deposit (in Yuan Renminbi) | ¥ |  |  |  |  |  | ¥ 500,000 |
CHINA |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Cash | 1,796,339 |  |  | 3,431,979 |  |  |
HONG KONG |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Administration costs |  |  | $ 500,000 |  |  |  |
Cash | 290,319 |  |  | $ 3,112,082 |  |  |
Accounts Receivable Aging Within Three Months [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Accounts receivable | 46,320 |  |  |  |  |  |
Accounts Receivable Aging Between Four Months to Six Months [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Accounts receivable | 133,602 |  |  |  |  |  |
Accounts Receivable Aging Between Seven Months to Twelve Months ]Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Accounts receivable | 28,233 |  |  |  |  |  |
Accounts Receivable Aging Over One Year [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Accounts receivable | $ 27,700 |  |  |  |  |  |
Accounts receivables written off |  |  |  |  | $ 13,901 |  |

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