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15. Commitments and Contingencies (Details Narrative)	12 Months Ended
	Dec. 31, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Payments paid for capitalized mineral rights	$ 65,000

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