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EXPLORATION AND EVALUATION ASSETS (Tables)
12 Months Ended
Dec. 31, 2018
Statements [Line Items]  
Disclosure of detailed information about exploration assets [Table Text Block]
    North Kivu     Ngayu     Total  
Cost                  
Balance as at January 1, 2017 $  9,955,415   $  17,752,354   $  27,707,769  
 Additions   203,541     1,236,098     1,439,639  
 Adjustments   -     (412,549 )   (412,549 )
 Earn-in Randgold payment   -     (1,251,296 )   (1,251,296 )
Balance as at December 31, 2017 $  10,158,956   $  17,324,607   $  27,483,563  
 Additions   122,568     2,756,104     2,878,672  
 Earn-in Randgold payment   -     (2,619,804 )   (2,619,804 )
Balance as at December 31, 2018 $  10,281,524   $  17,460,907   $  27,742,431