Document And Entity Information - shares	9 Months Ended
	May. 31, 2015	Jul. 10, 2015
Document Information [Line Items]
Entity Registrant Name	EACO CORP
Entity Central Index Key	0000784539
Current Fiscal Year End Date	--08-31
Entity Filer Category	Smaller Reporting Company
Trading Symbol	EACO
Entity Common Stock, Shares Outstanding		4,861,590
Document Type	10-Q
Amendment Flag	false
Document Period End Date	May 31, 2015
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2015