Joint Venture	12 Months Ended
Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Joint Venture	NOTE 10 – JOINT VENTURE On March 22, 2010, we, Phosphagenics Limited (“PSI Parent”), an Australian corporation, Phosphagenics Inc. (“PSI”), a Delaware corporation and subsidiary of PSI Parent, and Phusion, a Delaware limited liability company, entered into a Limited Liability Company Agreement (the “LLC Agreement”) of the Phusion joint venture and additional related agreements for the purpose of developing and commercializing, for worldwide distribution and sale, a wide range of non-prescription remedies using PSI Parent’s proprietary patented TPM™ technology (“TPM”). Pursuant to the LLC Agreement, we and PSI each owned a 50% membership interest in the Phusion joint venture. PROPHASE LABS, INC. PROPHASE LABS, INC. FOR THE BENEFIT OF PHUSION LABORATORIES, LLC vs. Phosphagenics, Inc., Phosphagenics, LTD and Phusion Laboratories, LLC as a nominal defendant On October 17, 2014, we initiated a demand for arbitration with the American Arbitration Association, case number 01-14-0001-7373, against PSI Parent and PSI (collectively known as the (“Phosphagenics Entitles”), relating to our Phusion joint venture. In November 2016, the arbitration case was resolved and concluded. The arbitrator rejected all of the counterclaims asserted by Phosphagenics that ProPhase pay damages to Phosphagenics. The arbitrator also awarded to ProPhase recovery of approximately $350,000 (net of the payment of certain wind down expenses) that had been invested in the Phusion joint venture entity; terminated the intellectual property license that had been granted to Phusion from Phosphagenics; and directed the wind down and termination of Phusion Laboratories LLC, the joint venture entity. Phusion a variable interest entity (“VIE)” and its financial statements are consolidated with the Company’s financial statements for each period presented. As a consequence of Phusion qualifying as a VIE, the $350,000 award was effected through the transfer of cash from the Phusion bank account to the Company’s solely controlled bank account and no gain or loss is realized as a result of the award. The steps to wind down and terminate Phusion Laboratories LLC, the joint venture entity, were initiated in December 2016 and completed in the first half of Fiscal 2017. The operations of the Phusion VIE were not material to any of Fiscal 2017, 2016 or 2015.

Joint Venture

12 Months Ended

Dec. 31, 2017

Equity Method Investments and Joint Ventures [Abstract]

NOTE 10 – JOINT VENTURE

On March 22, 2010, we, Phosphagenics Limited (“PSI Parent”), an Australian corporation, Phosphagenics Inc. (“PSI”), a Delaware corporation and subsidiary of PSI Parent, and Phusion, a Delaware limited liability company, entered into a Limited Liability Company Agreement (the “LLC Agreement”) of the Phusion joint venture and additional related agreements for the purpose of developing and commercializing, for worldwide distribution and sale, a wide range of non-prescription remedies using PSI Parent’s proprietary patented TPM™ technology (“TPM”). Pursuant to the LLC Agreement, we and PSI each owned a 50% membership interest in the Phusion joint venture.

PROPHASE LABS, INC. PROPHASE LABS, INC. FOR THE BENEFIT OF PHUSION LABORATORIES, LLC vs. Phosphagenics, Inc., Phosphagenics, LTD and Phusion Laboratories, LLC as a nominal defendant

On October 17, 2014, we initiated a demand for arbitration with the American Arbitration Association, case number 01-14-0001-7373, against PSI Parent and PSI (collectively known as the (“Phosphagenics Entitles”), relating to our Phusion joint venture.

In November 2016, the arbitration case was resolved and concluded. The arbitrator rejected all of the counterclaims asserted by Phosphagenics that ProPhase pay damages to Phosphagenics. The arbitrator also awarded to ProPhase recovery of approximately $350,000 (net of the payment of certain wind down expenses) that had been invested in the Phusion joint venture entity; terminated the intellectual property license that had been granted to Phusion from Phosphagenics; and directed the wind down and termination of Phusion Laboratories LLC, the joint venture entity.

Phusion a variable interest entity (“VIE)” and its financial statements are consolidated with the Company’s financial statements for each period presented. As a consequence of Phusion qualifying as a VIE, the $350,000 award was effected through the transfer of cash from the Phusion bank account to the Company’s solely controlled bank account and no gain or loss is realized as a result of the award. The steps to wind down and terminate Phusion Laboratories LLC, the joint venture entity, were initiated in December 2016 and completed in the first half of Fiscal 2017. The operations of the Phusion VIE were not material to any of Fiscal 2017, 2016 or 2015.