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16. MAJOR CUSTOMERS AND VENDORS - Digital currency mining segment major suppliers (Details) - Customer Concentration Risk [Member] - Accounts Receivable [Member]
12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Cryptech Solutions    
Concentration Risk, Percentage 25.00% 88.00%
Bitmain Technologies Ltd.    
Concentration Risk, Percentage 75.00% 12.00%