Document and Entity Information - USD ($)	12 Months Ended
	Aug. 31, 2020	Oct. 30, 2020	Feb. 28, 2020
Cover [Abstract]
Entity Registrant Name	Enertopia Corp.
Entity Central Index Key	0001346022
Document Period End Date	Aug. 31, 2020
Document Type	10-K
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Entity Public Float			$ 1,271,269
Entity Well Known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding		128,471,700
Entity Filer Category	Non-accelerated Filer
Current Fiscal Year End Date	--08-31
Entity Small Business	true
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Shell Company	false