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6. Commitments and Contingencies (Details Narrative) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]    
Payments paid for capitalized mineral rights $ 0UAMY_PaymentsPaidForCapitalizedMineralRights $ 200,000UAMY_PaymentsPaidForCapitalizedMineralRights
Other accrued liabilities $ 716us-gaap_OtherAccruedLiabilitiesCurrentAndNoncurrent $ 0us-gaap_OtherAccruedLiabilitiesCurrentAndNoncurrent
Payments scheduled At March 31, 2015, the following payments are scheduled: $100,000 on June 15, 2015 and $192,000 on December 15, 2015.