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15. MAJOR CUSTOMERS AND VENDORS - Digital currency mining segment major suppliers (Details) - Customer Concentration Risk [Member] - Accounts receivable | 9 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Bitmain Technologies |  |
Concentration Risk Threshold Percentage | 97.00% | 100.00%
Canaan U.S. Inc |  |
Concentration Risk Threshold Percentage | 3.00% | 0.00%

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- Definition Concentration Risk Threshold Percentage + References No definition available. + Details
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