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16. Commitments and Contingencies (Details Narrative) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Payments paid for capitalized mineral rights	$ 200,000UAMY_PaymentsPaidForCapitalizedMineralRights	$ 130,434UAMY_PaymentsPaidForCapitalizedMineralRights

X

- Definition

Payments paid for capitalized mineral rights.

+ References

No definition available.

+ Details

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Namespace Prefix:	UAMY_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration