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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: (Details) | 6 Months Ended
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Jun. 30, 2018
Minimum |
Revenue Recognition |
Percentage of metal production sold under annual or longer-term contracts | 80.00%
Maximum |
Revenue Recognition |
Percentage of metal production sold under annual or longer-term contracts | 90.00%

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- Definition The percentage of metal production sold under annual or longer-term contracts. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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