Significant Accounting Policies - Marketable Trading Securities (Details) - USD ($) $ in Thousands	Aug. 31, 2025	Aug. 31, 2024
Equity Securities, FV-NI
Equity securities, FV-NI, short position, liability, securities sold, but not yet purchased	$ 0	$ 0
Restricted cash collateralized for short sales	$ 0	$ 0

Equity Securities, FV-NI, Short Position, Liability, Securities Sold, but Not yet Purchased

No definition available.

Name:	eaco_EquitySecuritiesFvNiShortPositionLiabilitySecuritiesSoldButNotYetPurchased
Namespace Prefix:	eaco_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant