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17. Business Segments (Details 2) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Revenues | $ 10,772,192 us-gaap_Revenues | $ 11,020,839 us-gaap_Revenues | $ 12,042,702 us-gaap_Revenues
Production costs | 9,103,996 us-gaap_ProductionCosts | 8,351,530 us-gaap_ProductionCosts | 9,165,121 us-gaap_ProductionCosts
Depreciation and amortization | 780,782 us-gaap_DepreciationDepletionAndAmortization | 666,392 us-gaap_DepreciationDepletionAndAmortization | 472,990 us-gaap_DepreciationDepletionAndAmortization
Other operating costs | 2,440,303 us-gaap_OtherCostOfOperatingRevenue | 3,341,078 us-gaap_OtherCostOfOperatingRevenue | 2,723,278 us-gaap_OtherCostOfOperatingRevenue
Total operating expenses | 12,325,081 us-gaap_OperatingCostsAndExpenses | 12,359,000 us-gaap_OperatingCostsAndExpenses | 12,361,389 us-gaap_OperatingCostsAndExpenses
Income (loss) from operations | (1,552,889)us-gaap_OperatingIncomeLoss | (1,338,171)us-gaap_OperatingIncomeLoss | (318,687)us-gaap_OperatingIncomeLoss
Other income (expense): | (42,566)us-gaap_NonoperatingIncomeExpense | (73,548)us-gaap_NonoperatingIncomeExpense | (72,742)us-gaap_NonoperatingIncomeExpense
Income (loss) before income taxes | (1,595,455)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (1,411,719)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (391,429)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Income tax (expense) | 0 us-gaap_IncomeTaxExpenseBenefit | (229,451)us-gaap_IncomeTaxExpenseBenefit | (167,107)us-gaap_IncomeTaxExpenseBenefit
NET INCOME (LOSS) | (1,595,455)us-gaap_NetIncomeLoss | (1,641,170)us-gaap_NetIncomeLoss | (558,536)us-gaap_NetIncomeLoss
Antimony [Member] |  |  |
Revenues | 858,035 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 8,786,415 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 9,398,003 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Production costs | 4,896,283 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 4,592,019 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 5,665,806 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Depreciation and amortization | 1,648,288 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 61,574 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 40,979 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Other operating costs | 1,648,288 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 1,699,846 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 1,852,289 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Total operating expenses | 6,608,358 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 6,353,439 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 7,559,074 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Income (loss) from operations | 1,971,677 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 2,432,976 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 1,838,929 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Other income (expense): | (38,304)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | (61,937)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | (61,321)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Income (loss) before income taxes | 1,933,373 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 2,371,039 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 1,777,608 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Income tax (expense) | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | (229,451)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | (167,107)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
NET INCOME (LOSS) | 1,933,373 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 2,141,588 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember | 1,610,501 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_AntimonyMember
Mexico Antimony [Member] |  |  |
Revenues | 22,538 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 32,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 3,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Production costs | 3,155,486 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 2,662,780 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 1,880,499 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Depreciation and amortization | 230,656 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 386,462 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 222,235 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Other operating costs | 230,656 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 1,171,234 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 382,713 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Total operating expenses | 3,881,907 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 4,220,476 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 2,485,447 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Income (loss) from operations | (3,859,369)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (4,188,476)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (2,482,447)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Other income (expense): | (130)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (1,735)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (30)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Income (loss) before income taxes | (3,859,499)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (4,190,211)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (2,482,477)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Income tax (expense) | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
NET INCOME (LOSS) | (3,859,499)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (4,190,211)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember | (2,482,447)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_MexicoAntimonyMember
Zeloite (Member) |  |  |
Revenues | 2,169,619 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 2,202,414 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 2,641,699 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Production costs | 1,052,227 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 1,096,731 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 1,618,816 us-gaap_ProductionCosts / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Depreciation and amortization | 221,230 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 218,356 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 209,776 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Other operating costs | 561,359 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 469,998 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 488,276 us-gaap_OtherCostOfOperatingRevenue / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Total operating expenses | 1,834,816 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 1,789,085 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 2,316,868 us-gaap_OperatingCostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Income (loss) from operations | 3,348,033 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 417,329 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 324,831 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Other income (expense): | (4,132)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | (9,876)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | (11,391)us-gaap_NonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Income (loss) before income taxes | 330,671 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 407,453 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 313,440 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
Income tax (expense) | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember
NET INCOME (LOSS) | $ 330,671 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | $ 407,453 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember | $ 313,440 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = UAMY_ZeoliteMember

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- Definition The capitalized costs incurred during the period (excluded from amortization) to operate and maintain wells and related equipment and facilities, including depreciation and applicable operating costs of support equipment and facilities and other costs of operating and maintaining those wells and related equipment and facilities. They become part of the cost of oil and gas produced. Examples of production costs (sometimes called lifting costs) are: costs of labor to operate the wells and related equipment and facilities; repairs and maintenance; materials, supplies, and fuel consumed and supplies utilized in operating the wells and related equipment and facilities; property taxes and insurance applicable to proved properties and wells and related equipment and facilities; severance taxes; some support equipment or facilities may serve two or more oil and gas producing activities and may also serve transportation, refining, and marketing activities. To the extent that the support equipment and facilities are used in oil and gas producing activities, their depreciation and applicable operating costs become exploration, development or production costs, as appropriate. Depreciation, depletion, and amortization of capitalized acquisition, exploration, and development costs are not production costs but also become part of the cost of oil and gas produced along with production (lifting) costs identified above. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(c)(7)(ii)) -URI http://asc.fasb.org/extlink&oid=27015464&loc=d3e511914-122862 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 10 -Paragraph c -Subparagraph 3(ii)(A) -Article 4 + Details
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