Document and Entity Information - shares	6 Months Ended
	Feb. 28, 2019	Apr. 12, 2019
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Feb. 28, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Registrant Name	EACO CORP
Entity Central Index Key	0000784539
Current Fiscal Year End Date	--08-31
Entity Filer Category	Non-accelerated Filer
Trading Symbol	EACO
Entity Common Stock, Shares Outstanding		4,861,590
Entity Emerging Growth Company	false
Entity Small Business	true