UNCOMPLETED CONTRACTS (Detail Textuals) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015
Contractors [Abstract]
Backlog of uncompleted contracts	$ 91.1	$ 71.3

Amount of backlog arising from contracts such as purchase or sales orders acquired in a business combination.

No definition available.

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