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16. Commitments and Contingencies (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract] |  |
Payments paid for capitalized mineral rights | $ 127,500 | $ 200,000

X
- Definition Payments paid for capitalized mineral rights. + References No definition available. + Details
Name: | UAMY_PaymentsPaidForCapitalizedMineralRights
Namespace Prefix: | UAMY_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration