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INVESTMENT IN JOINT VENTURE - Narrative (Details) - CAD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement [Line Items]
100% JCU	100.00%
Arrears term of equity shares in JCU	1 month
Cash and cash equivalents	$ 131,054,000	$ 50,915,000	$ 63,998,000
JCU
Statement [Line Items]
Acquisition percentage	50.00%	50.00%
Incremental investment in JCU	$ 2,385,000
Cash and cash equivalents	$ 525,000	$ 1,473,000
JCU | Wheeler River Joint Venture
Statement [Line Items]
Acquisition percentage	10.00%
JCU | Millennium Project
Statement [Line Items]
Acquisition percentage	30.099%
JCU | Cameco Corporation
Statement [Line Items]
Acquisition percentage	69.901%
JCU | Kiggavik Project
Statement [Line Items]
Acquisition percentage	33.8118%
JCU | Orano Canada Inc.
Statement [Line Items]
Acquisition percentage	66.1882%
JCU | Christie Lake
Statement [Line Items]
Acquisition percentage	34.4508%
JCU | UEC
Statement [Line Items]
Acquisition percentage	65.5492%

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