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15. Related Party Transactions (Details Narrative) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Related Party Transactions [Abstract] |  |  |
Audit committee received amount in cash | $ 36,000 UAMY_AuditCommitteeReceivedAmountInCash | $ 36,000 UAMY_AuditCommitteeReceivedAmountInCash | $ 56,000 UAMY_AuditCommitteeReceivedAmountInCash
Consulting fees | $ 82,505 UAMY_ConsultingFees | $ 81,642 UAMY_ConsultingFees | $ 89,204 UAMY_ConsultingFees

X
- Definition Custom Element. + References No definition available. + Details
Name: | UAMY_AuditCommitteeReceivedAmountInCash
Namespace Prefix: | UAMY_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Custom Element. + References No definition available. + Details
Name: | UAMY_ConsultingFees
Namespace Prefix: | UAMY_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration