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Entity Information (USD $)
6 Months Ended
Jun. 30, 2011
Jul. 29, 2011
Entity Registrant Name MANNATECH INC  
Entity Central Index Key 0001056358  
Current Fiscal Year End Date --12-31  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers Yes  
Entity Current Reporting Status No  
Entity Filer Category Smaller Reporting Company  
Entity Public Float $ 15,108,849  
Entity Common Stock, Shares Outstanding   26,485,184
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q2