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7. Asset Retirement Obligation and Accrued Reclamation Costs (Details Narrative) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Asset Retirement Obligation Disclosure [Abstract]
Asset retirement obligation liability with reclamation obligations	$ 283,868	$ 277,720

X

- Definition

Custom Element.

+ References

No definition available.

+ Details

Name:	UAMY_AssetRetirementObligationLiabilities
Namespace Prefix:	UAMY_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

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