CONVERTIBLE NOTE, NET (Tables)

6 Months Ended

Mar. 31, 2022

Debt Disclosure [Abstract]

Summary of warrants activity

A summary of warrants activity for the six months ended March 31, 2021 and 2022 was as follows. The number of ADS were retroactively adjusted to reflect the stock split of ADS effective on March 7, 2022.

	Number of shares		Weighted average life	Expiration dates
Balance of warrants outstanding as of September 30, 2020		21,913	4.84 years
Grants of Warrants on October 14, 2020		963	5 years	October 14, 2025
Grants of Warrants on October 20, 2020		2,770	5 years	October 20, 2025
Grants of Warrants on October 29, 2020		3,124	5 years	October 29, 2025
Grants of Warrants on December 15, 2020		5,744	5 years	December 15, 2025
Grants of Warrants on February 25, 2021		4,630	5 years	February 25, 2026
Balance of warrants outstanding as of March 31, 2021		39,144	4.50 years
Balance of warrants outstanding as of September 30, 2021		58,627	4.25 years
Grants of Warrants on October 19, 2021		1,705	5 years	October 19, 2026
Grants of Warrants on November 1, 2021		2,184	5 years	November 1, 2026
Grants of Warrants on November 29, 2021		1,939	5 years	November 29, 2026
Grants of Warrants on December 10, 2021		2,127	5 years	December 10, 2026
Grants of Warrants on January 6, 2022		3,801	5 years	January 6, 2027
Grants of Warrants on January 27, 2022		13,385	5 years	January 27, 2027
Grants of Warrants on March 1, 2022		7,412	5 years	March 1, 2027
Grants of Warrants on March 31, 2022		8,031	5 years	March 31, 2027
Balance of warrants outstanding as of March 31, 2022		99,211	4.14 years

Summary of key assumption used in estimates of warrants

The key assumption used in estimates are as follows. The exercise prices were retroactively adjusted to reflect the stock split of ADS effective on March 7, 2022.

	July 29, 2020				September 25, 2020				October 14, 2020				October 20, 2020				October 29, 2020				December 15, 2020				February 25, 2021				April 7, 2021				May 18, 2021
Terms of warrants	60 months				60 months				60 months				60 months				60 months				60 months				60 months				60 months				60 months
Exercise price		57.3090				51.1070				46.5205				43.3265				38.4150				25.8380				17.7090				16.6355				10.1560
Risk free rate of interest		0.21	%			0.21	%			0.29	%			0.29	%			0.29	%			0.28	%			0.58	%			0.61	%			0.69	%
Dividend yield		0.00				0.00				0.00				0.00				0.00				0.00				0.00				0.00				0.00
Annualized volatility of    underlying stock		40.0	%			39.0	%			39.0	%			39.0	%			39.0	%			40.0	%			41.0	%			40.0	%			40.0	%

	June 21, 2021			July 13, 2021			July 30, 2021			September 8, 2021			September 30, 2021
Terms of warrants	60 months			60 months			60 months			60 months			60 months
Exercise price		10.1560			8.0360			8.0360			5.9720			5.9720
Risk free rate of interest		0.69	%		0.52	%		0.52	%		0.76	%		0.76	%
Dividend yield		0.00			0.00			0.00			0.00			0.00
Annualized volatility of underlying stock		40.0	%		40.0	%		40.0	%		40.0	%		40.0	%

	October 11, 2021			November 1, 2021			November 11, 2021						December 10, 2022						January 6, 2022					January 27, 2022					March 1, 2022			March 31, 2022
Terms of warrants	60 months			60 months			60 months						60 months						60 months					60 months					60 months			60 months
Exercise price		4.5744			4.2757					4.0013					3.5739					3.2626					2.8391					2.5636			2.3658
Risk free rate of interest		1.17	%		1.24	%				1.24	%				1.55	%				1.55	%				1.55	%				1.96	%		1.96	%
Dividend yield		0.00			0.00					0.00					0.00					0.00					0.00					0.00			0.00
Annualized volatility of underlying stock		40.9	%		40.8	%				40.8	%				41.5	%				41.5	%				41.5	%				42.2	%		42.2	%