Income taxes (Details Narrative) - USD ($)	6 Months Ended
Mar. 31, 2026	Mar. 31, 2025
SINGAPORE \| Singapore Enterprise Income Tax Law [Member]
Operating Loss Carryforwards [Line Items]
Statutory tax rate	17.00%	17.00%
Taxable income tax rate percentage	75.00%
Taxable income	$ 10,000
Exempted taxable income tax rate percentage	50.00%
Exempted taxable income	$ 190,000
HONG KONG \| Inland Revenue, Hong Kong [Member]
Operating Loss Carryforwards [Line Items]
Profits tax rate remaining percentage	16.50%
HONG KONG \| HongKong Enterprise Income Tax Law [Member]
Operating Loss Carryforwards [Line Items]
Assessable profits	$ 2,000,000
Remaining assessable profits	$ 2,000,000	$ 2,000,000
Profits tax rate remaining percentage	16.50%
HONG KONG \| HongKong Enterprise Income Tax Law [Member] \| Inland Revenue, Hong Kong [Member]
Operating Loss Carryforwards [Line Items]
Assessable profits percentage	8.25%
HONG KONG \| Inland Revenue, Hong Kong [Member]
Operating Loss Carryforwards [Line Items]
Profits tax rate remaining percentage		16.50%
CHINA \| PRC Enterprise Income Tax Law [Member]
Operating Loss Carryforwards [Line Items]
Statutory tax rate	25.00%	25.00%
BELIZE \| Belize Enterprise Income Tax Law [Member]
Operating Loss Carryforwards [Line Items]
Statutory tax rate	25.00%	25.00%

Assessable profits.

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Assessable profits percentage.

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- Definition

Effective income tax rate exempted percentage.

+ References

No definition available.

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Profits tax rate remaining percentage.

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Remaining assessable profits.

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- Definition

Tax credit carryforward exempted amount.

+ References

No definition available.

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- Definition

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

+ References

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-Topic 740
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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