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STOCK-BASED COMPENSATION (Details 1)	12 Months Ended
	Sep. 30, 2019 $ / shares
Tranche 8 [Member]
Exercise price (US$)	$ 14.40
Average risk-free interest rate	0.37%
Expected option life (year)	3 years
Volatility rate	86.32%
Dividend yield	0.00%
Tranche 9 [Member]
Exercise price (US$)	$ 12.70
Average risk-free interest rate	0.76%
Expected option life (year)	3 years
Volatility rate	79.20%
Dividend yield	0.00%
Tranche 10 [Member]
Exercise price (US$)	$ 14.80
Average risk-free interest rate	1.07%
Expected option life (year)	3 years
Volatility rate	79.67%
Dividend yield	0.00%
Tranche 11 [Member]
Exercise price (US$)	$ 13.80
Average risk-free interest rate	1.73%
Expected option life (year)	5 years
Volatility rate	80.72%
Dividend yield	0.00%
Tranche 12 [Member]
Exercise price (US$)	$ 20.50
Average risk-free interest rate	1.79%
Expected option life (year)	10 years
Volatility rate	69.27%
Dividend yield	0.00%
Tranche 13 [Member]
Exercise price (US$)	$ 16.50
Average risk-free interest rate	1.75%
Expected option life (year)	10 years
Volatility rate	69.92%
Dividend yield	0.00%
Tranche 14 [Member]
Exercise price (US$)	$ 20.00
Average risk-free interest rate	1.55%
Expected option life (year)	10 years
Volatility rate	65.37%
Dividend yield	0.00%
Tranche 15 [Member]
Exercise price (US$)	$ 20.70
Average risk-free interest rate	1.94%
Expected option life (year)	5 years
Volatility rate	63.87%
Dividend yield	0.00%
Tranche 16 [Member]
Exercise price (US$)	$ 16.50
Average risk-free interest rate	1.94%
Expected option life (year)	5 years
Volatility rate	52.40%
Dividend yield	0.00%
Tranche 17 [Member]
Exercise price (US$)	$ 8.00
Average risk-free interest rate	2.26%
Expected option life (year)	5 years
Volatility rate	63.20%
Dividend yield	0.00%
Tranche 18 [Member]
Exercise price (US$)	$ 9.10
Average risk-free interest rate	2.25%
Expected option life (year)	5 years
Volatility rate	64.60%
Dividend yield	0.00%
Tranche 19 [Member]
Exercise price (US$)	$ 8.20
Average risk-free interest rate	2.58%
Expected option life (year)	5 years
Volatility rate	68.20%
Dividend yield	0.00%
Tranche 20 [Member]
Exercise price (US$)	$ 5.19
Average risk-free interest rate	2.49%
Expected option life (year)	5 years
Volatility rate	103.00%
Dividend yield	0.00%

X

- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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-Section 50
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