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

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- Definition Including the current and noncurrent portions, the carrying value as of the balance sheet date of notes payable to banks, excluding mortgage notes, initially due beyond one year or beyond the operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_NotesPayableToBank
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_DebtSecurityAxis=UAMY_PromissoryNotePayable1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DebtSecurityAxis=UAMY_PromissoryNotePayable2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |