Document and Entity Information	3 Months Ended
	Nov. 30, 2011	Jan. 05, 2012
Document and Entity Information
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Nov. 30, 2011
Trading Symbol	enrt
Entity Registrant Name	Enertopia Corp.
Entity Central Index Key	0001346022
Current Fiscal Year End Date	--08-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		24,743,865
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well Known Seasoned Issuer	No
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1