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10. Notes Payable to Bank (Details) (USD $)
Dec. 31, 2014
Notes payable to bank $ 138,520us-gaap_NotesPayableToBank
Promissory note payable CD 48614  
Notes payable to bank 70,952us-gaap_NotesPayableToBank
/ us-gaap_DebtSecurityAxis
= UAMY_PromissoryNotePayable1Member
Promissory note payable CD 48615  
Notes payable to bank $ 67,568us-gaap_NotesPayableToBank
/ us-gaap_DebtSecurityAxis
= UAMY_PromissoryNotePayable2Member