LITIGATION (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Tax Examination [Line Items]
Reductions of tax positions of prior years	$ 1,084,000	$ 0
Litigation in General [Abstract]
Loss contingency accrual	200,000
Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Net tax deficiency associated with RAR	8,500,000
Penalties associated with RAR	1,500,000
Reductions of tax positions of prior years	1,084,000
Internal Revenue Service (IRS) [Member] | Earliest Open Tax Year [Member]
Income Tax Examination [Line Items]
Open tax years	2005
Internal Revenue Service (IRS) [Member] | Latest Open Tax Year [Member]
Income Tax Examination [Line Items]
Open tax years	2009
Marinova Pty. Limited v. Mannatech [Member]
Business Arbitration and Litigation [Abstract]
Lost profits damages sought	6,500,000
Payment owing amount forgiven	618,750
Settlement payment	2,600,000
Susan Chon vs. Mannatech [Member]
Product Liability Litigation [Abstract]
Product liability settlement	200,000
Product liability, amount covered by insurance	$ 79,000