No definition available.

Name:	TRLEF_IfrsStatementLineItems
Namespace Prefix:	TRLEF_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The exercise price of share options granted.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_ExercisePriceShareOptionsGranted2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of instruments granted in share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph IG23
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_IG23&doctype=Implementation%20Guidance
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_a&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfInstrumentsGrantedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of share options exercised in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-Subparagraph b
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_iv&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of share options expired in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-Subparagraph b
-Clause v
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_v&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of share options granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-Subparagraph b
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45_b_ii&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfSharesIssued
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the exercise of options.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_17&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_ProceedsFromExerciseOfOptions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the exercise of share purchase warrants.

+ References

+ Details

Name:	ifrs-full_ProceedsFromExerciseOfWarrants
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=TRLEF_WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=TRLEF_NonadjustingEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=TRLEF_BrokerWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=TRLEF_OptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=TRLEF_RestrictedStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details Narrative)																											1 Months Ended	9 Months Ended					12 Months Ended
Subsequent Events (Details Narrative)	Nov. 21, 2022 shares	Oct. 21, 2022 $ / shares	Oct. 01, 2022 USD ($) shares $ / shares	Oct. 01, 2022 CAD ($) shares $ / shares	Sep. 21, 2022 shares	Sep. 21, 2022 $ / shares shares	Sep. 21, 2022 $ / shares shares	Sep. 20, 2022 shares	Sep. 20, 2022 $ / shares shares	Sep. 20, 2022 $ / shares shares	Sep. 07, 2022 shares	Sep. 07, 2022 $ / shares shares	Sep. 07, 2022 $ / shares shares	Sep. 02, 2022 shares $ / shares	Sep. 01, 2022 shares $ / shares $ / shares	Jun. 29, 2022 $ / shares	Jun. 29, 2022 $ / shares	Jun. 14, 2022 shares $ / shares	Jun. 03, 2022 shares $ / shares	May 26, 2022 shares $ / shares	Apr. 08, 2022 shares $ / shares	Apr. 08, 2022 shares $ / shares	Sep. 07, 2021 shares $ / shares	Sep. 07, 2021 shares $ / shares	Aug. 20, 2021 shares	Aug. 09, 2021 shares	Jul. 28, 2021 shares	Sep. 30, 2022 USD ($) shares	Sep. 30, 2022 shares	Sep. 30, 2022 $ / shares shares	Sep. 30, 2022 $ / shares shares	Sep. 30, 2021 USD ($) shares $ / shares	Dec. 31, 2021 shares	Jun. 28, 2021 shares	Jun. 27, 2021 shares
IfrsStatementLineItems [Line Items]
Common stock, shares																												2,000,000	2,000,000	2,000,000	2,000,000	1,416,667
Exercise of warrants shares																													785,000				3,910,000
Price per share \| $ / shares																														$ 0.22		$ 0.24
Proceeds from warrants \| $																												$ 450,735				$ 1,771,205
Number of share options granted in share-based payment arrangement																													2,560,000	0.24	0.31		450,000
Proceeds from options \| $																												$ 28,071				$ 139,188
Warrants shares, expired																																	150,000
Warrants [member]
IfrsStatementLineItems [Line Items]
Common stock, shares					1,250,000	1,250,000	1,250,000	37,500	37,500	37,500	10,000	10,000	10,000	750,000	162,000			55,000			196,250	196,250	210,000	210,000	4,056,247	16,134,000								135,000	10,000
Exercise of warrants shares					1,250,000			37,500			10,000			750,000	162,000			55,000	100,000	100,000	196,250	196,250	200,000	200,000	3,605,247	16,134,000	10,000					4,476,667
Price per share \| (per share)															$ 0.10			$ 0.10	$ 0.10	$ 0.10	$ 0.08	$ 0.10	$ 0.10	$ 0.12
Number of share options granted in share-based payment arrangement						0.23	0.31		0.33	0.45		0.33	0.45	0.08	0.08	0.39	0.50													0.36	0.50
Number of shares, granted			250,000	250,000
Warrants [member] \| Top of range [member]
IfrsStatementLineItems [Line Items]
Price per share \| (per share)			$ 0.50	$ 0.31
Nonadjusting event [member] \| Warrants [member]
IfrsStatementLineItems [Line Items]
Common stock, shares			2,840,000	2,840,000
Exercise of warrants shares	9,501,584
Proceeds from warrants			$ 337,400	$ 405,400
Warrants shares, oustanding	12,442,663
Warrants shares, expired	2,941,079
Nonadjusting event [member] \| Warrants [member] \| Bottom of range [member]
IfrsStatementLineItems [Line Items]
Price per share \| (per share)		$ 0.15	$ 0.08	$ 0.10
Nonadjusting event [member] \| Warrants [member] \| Top of range [member]
IfrsStatementLineItems [Line Items]
Price per share \| (per share)			$ 0.27	$ 0.31
Nonadjusting event [member] \| Warrants [member] \| Top of range [member]
IfrsStatementLineItems [Line Items]
Exercise of warrants shares			2,840,000	2,840,000
Nonadjusting event [member] \| Broker warrant [member]
IfrsStatementLineItems [Line Items]
Exercise of warrants shares			1,500,000	1,500,000
Proceeds from warrants			$ 338,462	$ 465,000
Number of share options granted in share-based payment arrangement			1,500,000	1,500,000
Number of shares, granted			750,000	750,000
Nonadjusting event [member] \| Broker warrant [member] \| Top of range [member]
IfrsStatementLineItems [Line Items]
Price per share \| (per share)			$ 0.27	$ 0.31
Nonadjusting event [member] \| Options [member]
IfrsStatementLineItems [Line Items]
Common stock, shares			300,000	300,000
Exercise of warrants shares			300,000	300,000
Proceeds from options			$ 18,000	$ 24,000
Nonadjusting event [member] \| Options [member] \| Top of range [member]
IfrsStatementLineItems [Line Items]
Price per share \| $ / shares			$ 0.06
Nonadjusting event [member] \| Options [member] \| Bottom of range [member]
IfrsStatementLineItems [Line Items]
Price per share \| $ / shares			$ 0.08
Nonadjusting event [member] \| Restricted stock units (RSUs) [member]
IfrsStatementLineItems [Line Items]
Common stock, shares			600,000	600,000