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Mineral properties and development costs (Tables)
9 Months Ended
Aug. 31, 2015
Schedule of Mineral Properties and Development Costs [Table Text Block]
in thousands of US dollars  
    November 30, 2014     Acquisition costs     August 31, 2015  
    $       $       $    
Alaska, USA                  
Ambler (a)   26,586     -     26,586  
Bornite (b)   4,000     -     4,000  
Antioquia, Colombia                  
Titiribi (c)   -     3,264     3,264  
    30,586     3,264     33,850  
Schedule of Mineral Property Expenses [Table Text Block]
    in thousands of dollars  
    Three months ended     Nine months ended  
    August 31, 2015     August 31, 2014     August 31, 2015     August 31, 2014  
    $       $     $       $  
Alaska, USA                        
Community   26     35     75     69  
Drilling   701     -     701     -  
Engineering   254     5     271     107  
Environmental   73     20     77     35  
Geochemistry and geophysics   34     50     34     50  
Land and permitting   95     92     291     281  
Other income   (209 )   -     (209 )   -  
Project support   1,098     221     1,185     367  
Wages and benefits   699     424     964     1,007  
    2,771     847     3,389     1,916  
Antioquia, Colombia                        
Assaying   2     -     2     -  
Land and permitting   6     -     6     -  
Project support   45     -     45     -  
Professional fees   26     -     26     -  
Wages and benefits   62     -     62     -  
    141     -     141     -  
Mineral property expense   2,912     847     3,530     1,916