13. MAJOR CUSTOMERS AND VENDORS - Digital currency mining segment major suppliers (Details) - Customer Concentration Risk [Member] - Accounts Receivable [Member]	3 Months Ended	9 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Mining Vendor A [Member]
Concentration Risk, Percentage	80.05%	49.98%	72.98%	30.03%
Mining Vendor B [Member]
Concentration Risk, Percentage			20.09%	0.00%
Mining Vendor C [Member]
Concentration Risk, Percentage			0.00%	37.44%
Mining Vendor D [Member]
Concentration Risk, Percentage			0.00%	19.97%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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