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Income Taxes (Details) ¥ in Thousands, $ in Thousands	6 Months Ended
	Mar. 31, 2025 CNY (¥)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 CNY (¥)
Income Taxes [Line Items]
Income tax expenses	¥ 25	$ 3	¥ 48
Hong Kong [Member]
Income Taxes [Line Items]
Tax rate	16.50%	16.50%
PRC [Member]
Income Taxes [Line Items]
Tax rate	25.00%	25.00%

X

- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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