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TAXES - Additional Information (Details) - USD ($) | 12 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2018
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Corporate income tax rate (in percent) | 14.90% | 14.90% | 15.30%
Decrease in taxes due to tax holiday | $ 603,091 | $ 710,083 | $ 623,455
Benefit of the tax holidays on net income per share | $ 0.020 | $ 0.024 | $ 0.021
Gansu QLS |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Favorable tax rate (as a percent) | 15.00% | 15.00% | 15.00%
Chengdu QLS |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Favorable tax rate (as a percent) | 15.00% | 15.00% | 15.00%
Jiuquan Qiming Biotechnology Co., Ltd ("Qiming") |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Favorable tax rate (as a percent) | 10.00% | 10.00% | 10.00%
Hong Kong | Scenario One |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Favorable tax rate (as a percent) |  |  | 8.25%
Base profit for calculating tax rate |  |  | $ 2,000,000
Hong Kong | Scenario Two |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Favorable tax rate (as a percent) |  |  | 16.50%
Base profit for calculating tax rate |  |  | $ 2,000,000
China |  |  |
Investments, Owned, Federal Income Tax Note [Line Items] |  |  |
Corporate income tax rate (in percent) | 25.00% |  |

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