13. STOCK-BASED COMPENSATION - Fair Value Assumptions 2021 (Details) - USD ($)	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Expected dividends	$ 0	$ 0
Minimum [Member]
Risk free interest rate	1.04%	0.10%
Expected term (years)	4 years 11 months 26 days	1 year 6 months
Expected volatility	187.18%	140.00%
Minimum [Member] \| Restricted Stock Units (RSUs) [Member]
Risk free interest rate	0.14%
Expected term (years)	1 year
Expected volatility	111.37%
Cost of equity	20.00%
Maximum [Member]
Risk free interest rate	3.65%	0.41%
Expected term (years)	7 years 4 months 6 days	5 years 3 months
Expected volatility	533.00%	239.00%
Maximum [Member] \| Restricted Stock Units (RSUs) [Member]
Risk free interest rate	1.26%
Expected term (years)	5 years
Expected volatility	172.18%
Cost of equity	21.00%

Cost of equity

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Disclosure of the weighted average expected dividend for an entity using a valuation technique with different dividend rates during the contractual term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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