Equity	6 Months Ended
Jun. 30, 2017
Equity [Abstract]
Equity	4. Equity Issuance of Additional Common Stock On May 18, 2017, the stockholders of the Company approved the Medifast, Inc. Amended and Restated 2012 Share Incentive Plan (the “Amended and Restated 2012 Plan”) that increased the number of shares of Common Stock by 600,000, par value $.001 per share, which may be awarded under the Amended and Restated 2012 Plan. As June 30, 2017, the total number of shares authorized for issuance is 1,600,000. Stock Repurchase Plan On June 14, 2017 the Company announced it had established a repurchase plan under Rule 10b5-1 (the “Company’s 10b5-1 Plan”) of the Securities Exchange Act of 1934, as amended, to facilitate the continued repurchase of shares of the Company’s common stock under its existing stock repurchase program. The Company may repurchase up to 850,000 shares of its common stock, which remain available under the outstanding repurchase authorization as of June 14, 2017. The Company’s 10b5-1 Plan permits repurchases commencing June 14, 2017, unless the plan is terminated earlier in accordance with its terms. There is no guarantee as to the exact number of shares of the Company’s common stock, if any, that will be purchased under the Company’s 10b5-1 Plan.

Equity

6 Months Ended

Jun. 30, 2017

4. Equity

Issuance of Additional Common Stock

On May 18, 2017, the stockholders of the Company approved the Medifast, Inc. Amended and Restated 2012 Share Incentive Plan (the “Amended and Restated 2012 Plan”) that increased the number of shares of Common Stock by 600,000, par value $.001 per share, which may be awarded under the Amended and Restated 2012 Plan. As June 30, 2017, the total number of shares authorized for issuance is 1,600,000.

Stock Repurchase Plan

On June 14, 2017 the Company announced it had established a repurchase plan under Rule 10b5-1 (the “Company’s 10b5-1 Plan”) of the Securities Exchange Act of 1934, as amended, to facilitate the continued repurchase of shares of the Company’s common stock under its existing stock repurchase program. The Company may repurchase up to 850,000 shares of its common stock, which remain available under the outstanding repurchase authorization as of June 14, 2017. The Company’s 10b5-1 Plan permits repurchases commencing June 14, 2017, unless the plan is terminated earlier in accordance with its terms. There is no guarantee as to the exact number of shares of the Company’s common stock, if any, that will be purchased under the Company’s 10b5-1 Plan.