Taxes - Schedule of Effective Tax Rate (Details)	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Schedule of Effective Tax Rate [Abstract]
China Income tax statutory rate	25.00%	25.00%	25.00%
Effect of PRC tax holiday	(15.60%)	(11.60%)	(9.90%)
Permanent difference	0.10%	0.10%	0.10%
Research and development tax credit	(5.30%)	(7.20%)	(14.00%)
Non-PRC entity not subject PRC income tax	5.70%	4.30%
Change in valuation allowance	8.40%	0.10%	0.10%
Effective tax rate	18.30%	10.70%	1.30%

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

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of reported income tax benefit (expense) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to other reconciling items. Excludes state and local income tax expense (benefit), federal tax expense (benefit), statutory income tax expense (benefit) outside of country of domicile, tax credit, nondeductible expense, deduction, income tax settlement, income tax contingency, and cross-border tax law.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income exempt from income tax because of a tax holiday.

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