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MAJOR CUSTOMERS (Details) - Customer concentration risk | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
MAJOR CUSTOMERS |  |
Customers concentration percentage | 10.00% |
Revenue |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage | 100.00% | 100.00%
Revenue | TransCanada Corporation |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage |  | 10.40%
Revenue | All other |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage | 100.00% | 89.60%
Revenue | Customer one |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage | 10.00% |
Accounts receivable, net of retention |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage | 86.10% | 100.00%
Accounts receivable, net of retention | TransCanada Corporation |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage | 13.90% |
Accounts receivable, net of retention | All other |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage | 86.10% | 100.00%
Accounts receivable, net of retention | Customer two |  |
MAJOR CUSTOMERS |  |
Customers concentration percentage | 10.00% |

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