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6. Properties, Plants and Equipment (Details Narrative) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
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Properties Plants And Equipment Details Narrative |  |
Capitalized costs | $ 2,140,000 | $ 1,400,000

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- Details
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Namespace Prefix: | UAMY_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of accumulated interest costs capitalized as part of property, plant and equipment cost basis. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant