Profit Sharing Plan (Details) - USD ($) $ in Thousands	12 Months Ended
Aug. 31, 2025	Aug. 31, 2024
Defined Contribution Plan
Defined contribution plan, maximum annual contributions per employee, percent (as a percent)	15.00%
Defined contribution plan, employer matching contribution, percent of match (as a percent)	50.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay (as a percent)	6.00%
Defined contribution plan, employers' matching contribution, vesting period	5 years
Defined contribution plan, employer discretionary contribution amount	$ 1,117	$ 925

Defined Contribution Plan, Employers' Matching Contribution, Vesting Period

No definition available.

Name:	eaco_DefinedContributionPlanEmployersMatchingContributionVestingPeriod
Namespace Prefix:	eaco_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

No definition available.

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

Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage employer matches of the employee's percentage contribution matched.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration