STOCK OPTIONS AND WARRANTS - Schedule of Stockholders' Equity Note, Warrants or Rights (Details) - USD ($)	6 Months Ended
Feb. 28, 2023	Aug. 31, 2022	Aug. 31, 2021
Class of Warrant or Right [Line Items]
Exercise Price	$ 0.04
Number of Warrants	4,923,369	4,973,369	9,716,869
Weighted Average Life (Years)	25 days
Intrinsic Value	$ 54,157
March 27, 2019 [Member]
Class of Warrant or Right [Line Items]
Issue Date	Mar. 27, 2019
Expiry Date	Mar. 27, 2023
Exercise Price	$ 0.04
Number of Warrants	4,923,369

Represents the amount of class of warrant or right intrinsic value.

No definition available.

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Namespace Prefix:	enrt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Terms of warrant weighted average life.

+ References

No definition available.

+ Details

Name:	enrt_TermsOfWarrantWeightedAverageLife
Namespace Prefix:	enrt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the warrants or rights are exercisable, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

+ Details

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Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
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