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PERFORMANCE OBLIGATIONS (Details) - USD ($)	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
PERFORMANCE OBLIGATIONS
Recognized revenue	$ 0	$ 0
Amount of remaining unsatisfied performance obligations	$ 205,100,000

X

- References

No definition available.

+ Details

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Namespace Prefix:	esoa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of revenue recognized under performance obligations.

+ References

No definition available.

+ Details

Name:	esoa_RecognizedRevenueUnderPerformanceObligations
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-13

+ Details

Name:	us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant