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Investment in Ambler Metals LLC - Narrative (Details)		3 Months Ended		12 Months Ended
	Feb. 11, 2020 USD ($) Owner	Feb. 28, 2026 USD ($)	Feb. 28, 2025 USD ($)	Nov. 30, 2025 USD ($)
Schedule of Equity Method Investments [Line Items]
Comprehensive loss		$ 7,063,000	$ 3,623,000
Ambler Metals LLC
Schedule of Equity Method Investments [Line Items]
Joint venture equity contribution		$ 2,500,000
Percentage of ownership	50.00%	50.00%
Comprehensive loss		$ 2,700,000		$ 1,200,000
Number of board members | Owner	4
Number of members appointed by Trilogy | Owner	2
Maximum exposure to loss		106,400,000		105,300,000
South32
Schedule of Equity Method Investments [Line Items]
Contribution made to joint venture	$ 145,000,000
South32 | Ambler Metals LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership	50.00%
Trilogy and South32
Schedule of Equity Method Investments [Line Items]
Contributed cash to Ambler Metals to fund its operations		2,500,000
Ambler Metals
Schedule of Equity Method Investments [Line Items]
Human resources and accounting services in connection with a service agreement		14,000		$ 46,000
Amount receivable		$ 1,160

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