UNCOMPLETED CONTRACTS (Detail Textuals) - USD ($) $ in Millions	Dec. 31, 2018	Sep. 30, 2018
Contractors [Abstract]
Backlog	$ 59.3	$ 71.1

Represent the amount of backlog from uncompleted contracts.

No definition available.

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