Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2025	Nov. 20, 2025	Feb. 28, 2025
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Aug. 31, 2025
Document Transition Report	false
Securities Act File Number	001-14311
Entity Registrant Name	EACO CORPORATION
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
Title of 12(g) Security	Common Stock, $0.01 Par Value
Trading Symbol	EACO
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 7,605
Entity Common Stock, Shares Outstanding		4,861,590
Entity Central Index Key	0000784539
Current Fiscal Year End Date	--08-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Amendment Flag	false
Auditor Name	HASKELL & WHITE LLP
Auditor Firm ID	200
Auditor Location	Irvine, California