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UNCOMPLETED CONTRACTS - Backlog (Details) - USD ($) $ in Millions	Sep. 30, 2025	Sep. 30, 2024
UNCOMPLETED CONTRACTS
Backlog	$ 259.7	$ 243.2

X

- Definition

Represent the amount of backlog from uncompleted contracts.

+ References

No definition available.

+ Details

Name:	esoa_BacklogFromUncompletedContracts
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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