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Significant Accounting Policies - Additional Information (Detail) - CAD ($)
12 Months Ended
Dec. 31, 2018
Jan. 01, 2018
Disclosure of significant accounting policies [line items]    
Flow through shares expended on property exploration period Two years  
Right of use asset $ 2,965,000  
Lease liability related to the Company's office leases Associated lease liability related to the Company’s office leases with a term of 12 months or more on the Statement of Financial Position at January 1, 2019.  
Impact of Adopting IFRS 9 [member]    
Disclosure of significant accounting policies [line items]    
Decrease to opening accumulated deficit   $ (503,146)
Top of Range [member]    
Disclosure of significant accounting policies [line items]    
maturity period of Guaranteed investment certificates 3 months  
Bottom of Range [member]    
Disclosure of significant accounting policies [line items]    
Lease term period 12 months