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SHAREHOLDERS' EQUITY (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2014
item
Dec. 31, 2013
item
Exchangeable shares converted into common stock 400,000  
Outstanding Exchangeable Shares not exchanged 31,800,000  
Number of mining contractors with which the entity has entered into an agreement 1 1
Number of shares required to be issued under the agreement 156,500  
Litigation settlement liabilities $ 0.4  
Maximum
    
Number of shares to be issued to settle parts of expected future account payables   2,500,000