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Disclosure of currency risk (Details)
Dec. 31, 2017
CAD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
CAD ($)
Dec. 31, 2015
CAD ($)
Dec. 31, 2014
CAD ($)
Statement [Line Items]          
Cash and cash equivalents $ 3,533,611   $ 3,199,686 $ 5,634,601 $ 6,450,308
Restricted cash 771,434   359,172    
Receivables 3,376,411   3,430,006    
Accounts payable and accrued liabilities 749,865   577,265    
Advances from joint venture partners 808,905   $ 341,361    
Currency Risk [Member]          
Statement [Line Items]          
Cash and cash equivalents   $ 2,286,117      
Restricted cash   615,636      
Receivables   2,442,545      
Accounts payable and accrued liabilities   (446,604)      
Advances from joint venture partners   (644,497)      
Net exposure $ 5,338,027 $ 4,253,198