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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2025
COMMITMENTS AND CONTINGENCIES
Performance bonds outstanding amount		$ 84.3
PPP loans received	$ 9.8

X

- Definition

Amount of loan received from paycheck protection program (PPP).

+ References

No definition available.

+ Details

Name:	esoa_PaycheckProtectionProgramLoansReceived
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of outstanding of the performance bonds.

+ References

No definition available.

+ Details

Name:	esoa_PerformanceBondsOutstandingAmount
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration