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INVENTORIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
INVENTORIES    
Ore on leach pads $ 16,611 $ 14,267
In-process inventory 3,572 4,953
Stockpiles 2,723 1,102
Precious metals 5,059 5,035
Materials and supplies 1,488 1,263
Inventories $ 29,453 $ 26,620