Annual reports filed by certain Canadian issuers pursuant to Section 15(d) and Rule 15d-4

Financial Instruments - Summary of Impact on Profit and Equity of a 5 % strengthening of the US Dollar versus the Canadian Dollar (Detail)

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Financial Instruments - Summary of Impact on Profit and Equity of a 5 % strengthening of the US Dollar versus the Canadian Dollar (Detail) - 5% strengthening of US Dollar against Canadian Dollar [member] - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Profit of (Loss) $ 192,059 $ 888,913
CDN Current assets [member]    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Profit of (Loss) (10,155) (20,301)
CDN Accounts payable and accrued liability [member]    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Profit of (Loss) $ 202,214 $ 909,214