FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2024	Mar. 31, 2024
FAIR VALUE MEASUREMENTS
Fair value impairments	$ 0	$ 0

Amount of fair value disclosure asset not measured at fair value impairments.

No definition available.

Name:	ese_FairValueDisclosureAssetNotMeasuredAtFairValueImpariments
Namespace Prefix:	ese_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration