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6. Properties, Plants and Equipment (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Equipment	$ 10,139,948us-gaap_MachineryAndEquipmentGross	$ 8,743,951us-gaap_MachineryAndEquipmentGross
Buildings	1,427,463us-gaap_BuildingsAndImprovementsGross	1,380,049us-gaap_BuildingsAndImprovementsGross
Mineral Rights	1,117,636us-gaap_MineralRights	916,522us-gaap_MineralRights
Land & Other	6,642,280us-gaap_Land	6,393,315us-gaap_Land
Total	19,327,327us-gaap_PropertyPlantAndEquipmentGross	17,433,837us-gaap_PropertyPlantAndEquipmentGross
Accumulated Depreciation	(5,815,524)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	(5,038,192)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Properties, plants and equipment, net	13,511,803us-gaap_PropertyPlantAndEquipmentNet	12,395,645us-gaap_PropertyPlantAndEquipmentNet
USAC
Equipment	814,183us-gaap_MachineryAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_USACMember	749,493us-gaap_MachineryAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_USACMember
Buildings	243,248us-gaap_BuildingsAndImprovementsGross / us-gaap_StatementGeographicalAxis = UAMY_USACMember	242,186us-gaap_BuildingsAndImprovementsGross / us-gaap_StatementGeographicalAxis = UAMY_USACMember
Mineral Rights	0us-gaap_MineralRights / us-gaap_StatementGeographicalAxis = UAMY_USACMember	0us-gaap_MineralRights / us-gaap_StatementGeographicalAxis = UAMY_USACMember
Land & Other	3,274,572us-gaap_Land / us-gaap_StatementGeographicalAxis = UAMY_USACMember	3,270,248us-gaap_Land / us-gaap_StatementGeographicalAxis = UAMY_USACMember
Total	4,332,003us-gaap_PropertyPlantAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_USACMember	4,261,927us-gaap_PropertyPlantAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_USACMember
Accumulated Depreciation	(2,395,109)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = UAMY_USACMember	(2,333,484)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = UAMY_USACMember
Properties, plants and equipment, net	1,936,894us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = UAMY_USACMember	1,928,443us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = UAMY_USACMember
MEXICO
Equipment	6,159,064us-gaap_MachineryAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember	4,952,524us-gaap_MachineryAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember
Buildings	834,269us-gaap_BuildingsAndImprovementsGross / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember	787,917us-gaap_BuildingsAndImprovementsGross / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember
Mineral Rights	1,117,636us-gaap_MineralRights / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember	916,522us-gaap_MineralRights / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember
Land & Other	3,367,708us-gaap_Land / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember	3,123,067us-gaap_Land / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember
Total	11,478,677us-gaap_PropertyPlantAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember	9,780,030us-gaap_PropertyPlantAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember
Accumulated Depreciation	(1,482,098)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember	(987,621)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember
Properties, plants and equipment, net	9,996,579us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember	8,792,409us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = UAMY_MEXICOMember
BRZ
Equipment	3,166,701us-gaap_MachineryAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_BRZMember	3,041,934us-gaap_MachineryAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_BRZMember
Buildings	349,946us-gaap_BuildingsAndImprovementsGross / us-gaap_StatementGeographicalAxis = UAMY_BRZMember	349,946us-gaap_BuildingsAndImprovementsGross / us-gaap_StatementGeographicalAxis = UAMY_BRZMember
Mineral Rights		0us-gaap_MineralRights / us-gaap_StatementGeographicalAxis = UAMY_BRZMember
Land & Other		0us-gaap_Land / us-gaap_StatementGeographicalAxis = UAMY_BRZMember
Total	3,516,647us-gaap_PropertyPlantAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_BRZMember	3,391,880us-gaap_PropertyPlantAndEquipmentGross / us-gaap_StatementGeographicalAxis = UAMY_BRZMember
Accumulated Depreciation	(1,938,317)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = UAMY_BRZMember	(1,717,087)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment / us-gaap_StatementGeographicalAxis = UAMY_BRZMember
Properties, plants and equipment, net	$ 1,578,330us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = UAMY_BRZMember	$ 1,674,793us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = UAMY_BRZMember

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Carrying amount at the balance sheet date of mineral rights, or rights to extract a mineral from the earth or to receive payment in the form of a royalty for the extraction of minerals, net of amortization.

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