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Equity - Noncontrolling interest (Details) - USD ($) | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
Stockholders Equity [Line Items] |  |
Total noncontrolling interest | $ 916,506 | $ 869,981
Paid-in capital |  |
Stockholders Equity [Line Items] |  |
Total noncontrolling interest | 107,461 | 107,461
Additional paid-in capital |  |
Stockholders Equity [Line Items] |  |
Total noncontrolling interest | 807,953 | 807,953
Foreign currency translation loss attributed to non-controlling interest |  |
Stockholders Equity [Line Items] |  |
Total noncontrolling interest | 14,588 | (33,828)
Net loss attributed to noncontrolling interest |  |
Stockholders Equity [Line Items] |  |
Total noncontrolling interest | $ (13,496) | $ (11,520)

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