| Document and Entity Information Document | Jul. 11, 2022 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Creation Date | Jul. 11, 2022 |
| Document Period End Date | Jul. 11, 2022 |
| Amendment Flag | false |
| Entity Registrant Name | Enertopia Corporation |
| Entity Address, Address Line One | #18 1873 Spall Road |
| Entity Address, City or Town | Kelowna |
| Entity Address, State or Province | BC |
| Entity Address, Country | CA |
| Entity Address, Postal Zip Code | V1Y 4R2 |
| Entity Incorporation, State Country Name | NV |
| City Area Code | 250 |
| Local Phone Number | 870-2219 |
| Entity File Number | 000-51866 |
| Entity Central Index Key | 0001346022 |
| Entity Emerging Growth Company | false |
| Entity Tax Identification Number | 20-1970188 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Shares |
| Trading Symbol | ENRT |
