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Revenue Recognition	3 Months Ended
	Mar. 31, 2012
Revenue Recognition	4. Revenue Recognition Revenue is recognized net of discounts, rebates, promotional adjustments, price adjustments, and estimated returns and upon transfer of title and risk to the customer which occurs at shipping (F.O.B. terms). Upon shipment, the Company has no further performance obligations and collection is reasonably assured as the majority of sales are paid for prior to shipping. Medifast Weight Control Centers’ program fees are recognized over the estimated service period.

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Revenue Recognition [Text Block]

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