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INVENTORY (Tables)
 12 Months Ended
Dec. 31, 2017
Inventory Tables  
Schdule of Inventory

   

December 31,

2017

    

December 31,

2016

    

January 1,

2016

  
                   
Process material stockpiles   $ 3,565,892     $ 2,604,720     $ 2,434,943  
Concentrate inventory     3,436,879       1,895,808       159,998  
Materials and supplies     2,099,486       1,303,484       737,598  
    $ 9,102,257     $ 5,804,012     $ 3,332,539