Document And Entity Information - shares	6 Months Ended
	Feb. 28, 2022	Aug. 23, 2022
Document And Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Feb. 28, 2022
Entity File Number	000-14311
Entity Registrant Name	EACO CORP
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	59-2597349
Entity Address, Address Line One	5065 East Hunter Avenue
Entity Address, City or Town	Anaheim
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92807
City Area Code	714
Local Phone Number	876-2490
Trading Symbol	EACO
Entity Central Index Key	0000784539
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(g) Security	Common Stock, $0.01 Par Value
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--08-31
Amendment Flag	false
Entity Common Stock, Shares Outstanding		4,861,590