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STOCK-BASED COMPENSATION - Black-Scholes Option Pricing (Details) - $ / shares				12 Months Ended
	May 22, 2023	Jan. 03, 2022	Apr. 14, 2021	Sep. 30, 2023
Exercise price (US$)	$ 6.79	$ 7.23
Tranche 11
Exercise price (US$)				$ 13.8
Average risk-free interest rate				1.73%
Expected option life (year)				5 years
Volatility rate				80.72%
Dividend yield				0.00%
Tranche 12
Exercise price (US$)				$ 20.5
Average risk-free interest rate				1.79%
Expected option life (year)				10 years
Volatility rate				69.27%
Dividend yield				0.00%
Tranche 13
Exercise price (US$)				$ 16.5
Average risk-free interest rate				1.75%
Expected option life (year)				10 years
Volatility rate				69.92%
Dividend yield				0.00%
Tranche 14
Exercise price (US$)				$ 20.0
Average risk-free interest rate				1.55%
Expected option life (year)				10 years
Volatility rate				65.37%
Dividend yield				0.00%
Tranche 15
Exercise price (US$)				$ 20.7
Average risk-free interest rate				1.94%
Expected option life (year)				5 years
Volatility rate				63.87%
Dividend yield				0.00%
Tranche 16
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
Exercise price (US$)				$ 8.0
Average risk-free interest rate				2.26%
Expected option life (year)				5 years
Volatility rate				63.16%
Dividend yield				0.00%
Tranche 18
Exercise price (US$)				$ 9.1
Average risk-free interest rate				2.25%
Expected option life (year)				5 years
Volatility rate				64.58%
Dividend yield				0.00%
Tranche 19
Exercise price (US$)				$ 8.2
Average risk-free interest rate				2.58%
Expected option life (year)				5 years
Volatility rate				68.19%
Dividend yield				0.00%
Tranche 20
Exercise price (US$)				$ 5.19
Average risk-free interest rate				2.49%
Expected option life (year)				5 years
Volatility rate				103.32%
Dividend yield				0.00%
Tranche 21
Exercise price (US$)			$ 13.99	$ 5.30
Average risk-free interest rate				1.67%
Expected option life (year)				5 years
Volatility rate				52.62%
Dividend yield				0.00%
Tranche 22
Exercise price (US$)				$ 15.85
Average risk-free interest rate				0.87%
Expected option life (year)				5 years
Volatility rate				109.92%
Dividend yield				0.00%
Tranche 23
Exercise price (US$)				$ 7.23
Average risk-free interest rate				1.37%
Expected option life (year)				5 years
Volatility rate				100.95%
Dividend yield				0.00%
Tranche 24
Exercise price (US$)				$ 6.79
Average risk-free interest rate				0.04%
Expected option life (year)				10 years
Volatility rate				0.74%
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://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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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://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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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://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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