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Document and Entity Information
 3 Months Ended
Mar. 31, 2012
May 10, 2012
Document And Entity Information    
Entity Registrant Name UNITED STATES ANTIMONY CORP  
Entity Central Index Key 0000101538  
Document Type 10-Q  
Document Period End Date Mar. 31, 2012  
Amendment Flag true  
Amendment Description This amendment is being filed to comply with regulations.  
Current Fiscal Year End Date --12-31  
Is Entity a Well-known Seasoned Issuer? No  
Is Entity a Voluntary Filer? No  
Is Entity's Reporting Status Current? Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   60,804,010
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2012