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Significant accounting policies and basis of preparation (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure Of Significant Accounting Policies And Basis Of Preparation [Abstract]
Disclosure of detailed information about estimated useful life or depreciation rate [Table Text Block]	Class Amortization rate Motor vehicles 30% declining balance Computer equipment 30% declining balance Exploration and office equipment 20% declining balance Right of use asset – office lease 4 years straight line