| **Interim Financial Statements**            | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| **Interim Financial Statements [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          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| Interim Financial Statements                | Progenics Pharmaceuticals, Inc. (Progenics, we or us) develops innovative medicines for oncology. Our clinical development efforts center on late-stage oncology assets. We are conducting a phase 2 clinical trial of our therapeutic candidate for prostate cancer, PSMA ADC, a fully human monoclonal antibody-drug conjugate (ADC), and have recently completed patient dosing in a phase 2 trial of 1404 (trofolastat), an imaging agent candidate also for prostate cancer. We are resuming a pivotal phase 2 clinical trial of Azedra™, our ultra-orphan radiotherapy candidate for pheochromocytoma, and expect to file an IND application for MIP-1095, a small molecule therapeutic candidate for prostate cancer, in the U.S. by the end of this year.We have licensed our first commercial drug, Relistor® (methylnaltrexone bromide) subcutaneous injection for the treatment of opioid induced constipation (OIC), to Salix Pharmaceuticals, Inc., and 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.On July 10, the FDA informed us that Relistor for chronic non-cancer pain patients with OIC can be approved on the data included in Salix's 2011 supplemental New Drug Application (sNDA). The agency determined not to require additional clinical trials of the drug prior to approval of this expanded indication. Salix has submitted to the agency information required in its Appeal Response for final approval.We fund our operations to a significant extent from capital-raising. Earlier this year, we raised $37.5 million in an underwritten public offering of 8.75 million shares of common stock, 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. In addition, our current principal sources of revenue from operations are royalty, commercialization milestone and revenue-sharing payments from Salix relating to Relistor. Royalty and milestone payments from Relistor depend on success in development and commercialization, which is dependent on many factors, including Salix's efforts, competition from drugs for the same or similar indications, and decisions by the FDA and other regulatory bodies.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 June 30, 2014 we held $85.35 million in cash and cash equivalents, an $8.69 million decrease from the first quarter-end, and a $19.49 million increase from $65.86 million at 2013 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, and if we are unable to conclude favorable collaboration, license, asset sale, capital raising or other financing transactions, we will have to reduce, delay or eliminate spending on some current operations, and/or reduce salary and other overhead expenses, to extend our remaining operations. We expect to continue to incur operating losses for the foreseeable near future.Our interim Consolidated Financial Statements included in this report 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 2013 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 period's financial statements to conform to the current presentation. This includes the reclassification of certain expenses for share-based compensation from research and development expenses to general and administrative expenses which 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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