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Cover
Jun. 12, 2019
Cover [Abstract]  
Document Type 8-K/A
Amendment Flag true
Amendment Description This Amendment No. 1 to Current Report on Form 8-K amends a Current Report on Form 8-K filed by Medifast, Inc. on June 13, 2019 (the “Report”), and is being filed solely to file a corrected version of Exhibit 3.1, an incorrect version of which was included in the Report. The incorrect version of Exhibit 3.1 filed with the Report contained errors in Article 2.3 and Article 2.5. A copy of the correct version is attached to this filing as Exhibit 3.1, which correct version properly indicates that the Board of Directors of the Company was declassified commencing with the Company’s annual meeting in 2015, and remains declassified.
Document Period End Date Jun. 12, 2019
Entity File Number 001-31573
Entity Registrant Name MEDIFAST, INC.
Entity Central Index Key 0000910329
Entity Tax Identification Number 13-3714405
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 100 International Drive
Entity Address, City or Town Baltimore
Entity Address, State or Province MD
Entity Address, Postal Zip Code 21202
City Area Code 410
Local Phone Number 581-8042
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.001 per share
Trading Symbol MED
Security Exchange Name NYSE
Entity Emerging Growth Company false