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Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2018
Revenue Recognition and Deferred Revenue [Abstract]  
Schedule of sales of products by metal

   December 31, 2018   December 31, 2017 
Gold  $248,344   $162,762 
Silver (by-product)   3,060    4,860 
Less: Smelter and refining charges   (21,432)   (5,038)
Total  $229,972   $162,584