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Exploration & Evaluation Assets (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Impairment loss	$ 3,101,343

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- Definition

Impairment of exploration and evaluation assets.

+ References

No definition available.

+ Details

Name:	TRLEF_ImpairmentOfExplorationAndEvaluationAssets
Namespace Prefix:	TRLEF_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration