| **Interim Financial Statements**            | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| **Interim Financial Statements [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          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| Interim Financial Statements                | 1.  Interim Financial StatementsProgenics Pharmaceuticals, Inc. (the Company, Progenics, we or us) develops innovative medicines for oncology. Our clinical development efforts center on later-stage oncology assets. We have completed phase 2 clinical trials of our therapeutic candidate for prostate cancer, PSMA ADC, a fully human monoclonal antibody-drug conjugate (ADC), and 1404 (trofolastat), an imaging agent candidate also for prostate cancer. We resumed a pivotal phase 2 clinical trial of Azedra™, our ultra-orphan radiotherapy candidate for pheochromocytoma. We are moving forward with MIP-1095 into clinical development and plan to file an Investigational New Drug (IND) application in the U.S.On April 1, 2015, Valeant Pharmaceuticals International, Inc. acquired Salix Pharmaceuticals, Ltd., and Salix became a wholly-owned subsidiary of Valeant (references hereinafter to "Valeant" refer to Salix and Valeant as a consolidated entity as a result of the acquisition). We have licensed to Valeant our first commercial drug Relistor® (methylnaltrexone bromide) subcutaneous injection for the treatment of opioid induced constipation (OIC), which in September 2014 received an expanded approval from the U.S. Food and Drug Administration (FDA) for the treatment of OIC in patients taking opioids for chronic non-cancer pain, and we expect an upcoming U.S. New Drug Application (NDA) filing for the oral indication. Recently, Relistor received a positive opinion from the Committee for Medicinal Products for Human Use of the European Medicines Agency for the treatment of OIC in adults with chronic non-cancer pain. We have partnered other internally-developed or acquired compounds and technologies with third parties. We continue to consider opportunities for strategic collaborations, out-licenses and other arrangements with biopharmaceutical companies involving proprietary research, development and clinical programs, and may in the future also in-license or acquire additional oncology compounds and/or programs.Our current principal sources of revenue from operations are royalty, commercialization milestone and revenue-sharing payments from Valeant's Relistor operations. Royalty and milestone payments from Relistor depend on success in development and commercialization, which is dependent on many factors, such as Valeant's efforts, decisions by the FDA and other regulatory bodies, competition from drugs for the same or similar indications, and the outcome of clinical and other testing of Relistor.We fund our operations to a significant extent from capital-raising. In the first quarter of 2014, we raised $37.5 million in an underwritten public offering of 8.75 million shares of common stock at a public offering price of $4.60 per share, and entered into an agreement with an investment bank under which we may sell from time to time up to $50 million of our stock.Progenics commenced principal operations in 1988, became publicly traded in 1997 and throughout has been engaged primarily in research and development efforts, establishing corporate collaborations and related activities. Certain of our intellectual property rights are held by wholly owned subsidiaries. All of our operations are conducted at our facilities in Tarrytown, New York. We operate under a single research and development segment.Funding and Financial Matters. At March 31, 2015 we held $108.4 million in cash and cash equivalents, a decrease of $10.9 million from $119.3 million at 2014 year-end. We expect that this amount will be sufficient to fund operations as currently anticipated beyond one year. We expect to require additional funding in the future, the availability of which is never guaranteed and may be uncertain. We expect that we may continue to incur operating losses for the foreseeable future.Our interim Consolidated Financial Statements have been prepared in accordance with applicable presentation requirements, and accordingly do not include all information and disclosures necessary for a presentation of our financial position, results of operations and cash flows in conformity with accounting principles generally accepted in the United States of America (GAAP). In the opinion of management, these financial statements reflect all adjustments, consisting primarily of normal recurring accruals necessary for a fair statement of results for the periods presented. The results of operations for interim periods are not necessarily indicative of the results for the full year. Our interim financial statements should be read in conjunction with the financial statements and notes thereto contained in our 2014 Annual Report on Form 10-K. The year-end consolidated balance sheet data in these financial statements were derived from audited financial statements but do not include all disclosures required by GAAP. Certain amounts have been reclassified in prior periods' financial statements to conform to the current year presentation. This includes the reclassification of (i) certain expenses for share-based compensation from research and development to general and administrative expenses and (ii) certain non-cash items from general and administrative expenses to change in contingent consideration liability, which reclassifications had no effect on total expenses as previously reported. |

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The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.
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