Summary of significant accounting policies (Details Narrative) |
1 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Apr. 30, 2019 |
May 31, 2018 |
Apr. 30, 2018 |
Mar. 31, 2026
USD ($)
|
Mar. 31, 2025
USD ($)
|
Sep. 30, 2025
USD ($)
|
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| Contract liabilities, current | $ 484,862 | $ 602,721 | ||||
| Average exchange rates | 7.0061 | 7.2308 | ||||
| Cash | $ 72,485 | |||||
| Cumulative impairment for long-term investments | 7,400,000 | 200,000 | ||||
| Impairment loss of investments | 7,000,000.0 | |||||
| Cash maintained with people's republic of china | $ 35,356 | $ 30,502 | ||||
| Exchange rates (per RMB1) | 6.8980 | 7.1190 | ||||
| UNITED STATES [Member] | ||||||
| Cash | $ 213,896 | $ 772,975 | ||||
| Deposit Insurance Regulation [Member] | ||||||
| Cash | 72,485 | |||||
| Minimum | ||||||
| Applicable vat rate percentage | 9.00% | 12.00% | 13.00% | |||
| Maximum | ||||||
| Applicable vat rate percentage | 13.00% | 16.00% | 17.00% | |||
| Shipping and handling | ||||||
| Shipping and handling expenses | $ 1,405 | $ 47,352 | ||||
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- Definition Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation. No definition available.
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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