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MAJOR CUSTOMERS (Details) - Customer concentration risk	12 Months Ended
	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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- Definition

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.

+ References

No definition available.

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 275
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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-Name Accounting Standards Codification
-Section 50
-Paragraph 18
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
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-Name Accounting Standards Codification
-Section 50
-Paragraph 18
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 7: http://www.xbrl.org/2003/role/exampleRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
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