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2. Concentrations of Risk (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Sales to Three Largest Customers	$ 6,102,297us-gaap_SalesRevenueGoodsNet	$ 7,136,360us-gaap_SalesRevenueGoodsNet	$ 6,651,605us-gaap_SalesRevenueGoodsNet
Total percentage of revenue	56.65%us-gaap_ConcentrationRiskPercentage1	64.75%us-gaap_ConcentrationRiskPercentage1	55.23%us-gaap_ConcentrationRiskPercentage1
AlphaGaryCorporation [Member]
Sales to Three Largest Customers	3,289,766us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_AlphaGaryCorporationMember	3,700,945us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_AlphaGaryCorporationMember	3,245,612us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_AlphaGaryCorporationMember
East Penn Manufacturing Inc
Sales to Three Largest Customers	720,966us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_EastPennMember	0us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_EastPennMember	0us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_EastPennMember
General Electric [Member]
Sales to Three Largest Customers	0us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_GELightingLPCMember	781,200us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_GELightingLPCMember	0us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_GELightingLPCMember
KohlerCorporation [Member]
Sales to Three Largest Customers	2,091,565us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_KohlerCorporationMember	2,654,215us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_KohlerCorporationMember	2,286,938us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_KohlerCorporationMember
PolymerProductsInc [Member]
Sales to Three Largest Customers	$ 0us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_PolymerProductsIncMember	$ 0us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_PolymerProductsIncMember	$ 1,119,055us-gaap_SalesRevenueGoodsNet / us-gaap_MajorCustomersAxis = UAMY_PolymerProductsIncMember

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



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-Name Regulation S-X (SX)

-Number 210

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