License Agreements	9 Months Ended
Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
License Agreements	License Agreements As part of its business, the company enters into licensing agreements with third parties that often require milestone and royalty payments based on the progress of the licensed assets through development and commercial stages. Milestone payments may be required, for example, upon approval of the product for marketing by a regulatory agency, and the company may be required to make royalty payments based upon a percentage of net sales of the product. The expenditures required under these arrangements in any period may be material and are likely to fluctuate from period to period. These arrangements sometimes permit the company to unilaterally terminate development of the product and thereby avoid future contingent payments; however, the company is unlikely to cease development if the compound successfully achieves clinical testing objectives. In conjunction with the acquisition of NeuVax^TM, the company acquired rights and assumed obligations under a license agreement among Apthera and The University of Texas M. D. Anderson Cancer Center (“MDACC”) and The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (“HJF”) which grants exclusive worldwide rights to a U.S. patent covering the nelipepimut-S peptide and several U.S. and foreign patents and patent applications covering methods of using the peptide as a vaccine. Under the terms of this license, we are required to pay an annual maintenance fee of $200,000, a milestone payment of $200,000 upon commencing the Phase 3 PRESENT trial of NeuVax and other clinical milestone payments, as well as royalty payments based on sales of NeuVax or other therapeutic products developed from the licensed technologies. Effective April 30, 2009, we entered into a license agreement with Kwangdong Pharmaceutical Co, Ltd (Kwangdong). Under the agreement, we granted Kwangdong exclusive rights to seek marketing approval in The Republic of Korea (South Korea) for our NeuVax product candidate for the treatment of breast cancer following its approval by the FDA or the European Medicines Agency, and to market, sell and distribute NeuVax in South Korea assuming such approval is obtained. Effective December 3, 2012, we entered into a license and supply agreement with ABIC Marketing Limited, a subsidiary of Teva Pharmaceuticals (“ABIC”), under which we granted ABIC exclusive rights to seek marketing approval in Israel for our NeuVax product candidate for intradermal injection for the treatment of breast cancer following its approval by the FDA or the European Medicines Agency, and to market, sell and distribute NeuVax in Israel assuming such approval is obtained. ABIC’s rights also include a right of first refusal in Israel for all future indications for which NeuVax may be approved. Under the license and supply agreement, ABIC will assume responsibility for regulatory registration of NeuVax in Israel, provide financial support for local development, and commercialize the product in the region in exchange for making royalty payments to us based on future sales of NeuVax. ABIC also agrees in the license and supply agreement to purchase from us all supplies of NeuVax at a price determined according to a specified formula. Effective January 14, 2014, we entered into a strategic development and commercialization partnership with Dr. Reddy’s Laboratories Ltd. (“Dr. Reddy’s”), under which we licensed commercial rights in India to Dr. Reddy’s for NeuVax in breast and gastric cancers. Under the agreement, Dr. Reddy’s will lead the Phase 2 development of NeuVax in India in gastric cancer, significantly expanding the potential patient population addressable with NeuVax. On January 12, 2014, we acquired worldwide rights to anagrelide controlled release (CR) formulation, which we renamed GALE-401, through our acquisition of Mills Pharmaceuticals, LLC ("Mills") and Mills became a wholly owned subsidiary. GALE-401 contains the active ingredient anagrelide, an FDA-approved product that has been in use since the late 1990s for the treatment of essential thrombocythemia (ET). Mills holds an exclusive license to develop and commercialize anagrelide CR formulation, pursuant to a license agreement with BioVascular, Inc. Under the terms of the license agreement, Mills has agreed to pay BioVascular, Inc. a mid-to-low single digit royalty on net revenue from the sale of licensed products as well as future cash milestone payments based on the achievement of specified regulatory milestones. Mills is also responsible for patent prosecution and maintenance.

License Agreements

As part of its business, the company enters into licensing agreements with third parties that often require milestone and royalty payments based on the progress of the licensed assets through development and commercial stages. Milestone payments may be required, for example, upon approval of the product for marketing by a regulatory agency, and the company may be required to make royalty payments based upon a percentage of net sales of the product. The expenditures required under these arrangements in any period may be material and are likely to fluctuate from period to period.

These arrangements sometimes permit the company to unilaterally terminate development of the product and thereby avoid future contingent payments; however, the company is unlikely to cease development if the compound successfully achieves clinical testing objectives.

In conjunction with the acquisition of NeuVax^TM, the company acquired rights and assumed obligations under a license agreement among Apthera and The University of Texas M. D. Anderson Cancer Center (“MDACC”) and The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (“HJF”) which grants exclusive worldwide rights to a U.S. patent covering the nelipepimut-S peptide and several U.S. and foreign patents and patent applications covering methods of using the peptide as a vaccine. Under the terms of this license, we are required to pay an annual maintenance fee of $200,000, a milestone payment of $200,000 upon commencing the Phase 3 PRESENT trial of NeuVax and other clinical milestone payments, as well as royalty payments based on sales of NeuVax or other therapeutic products developed from the licensed technologies.

Effective April 30, 2009, we entered into a license agreement with Kwangdong Pharmaceutical Co, Ltd (Kwangdong). Under the agreement, we granted Kwangdong exclusive rights to seek marketing approval in The Republic of Korea (South Korea) for our NeuVax product candidate for the treatment of breast cancer following its approval by the FDA or the European Medicines Agency, and to market, sell and distribute NeuVax in South Korea assuming such approval is obtained.

Effective December 3, 2012, we entered into a license and supply agreement with ABIC Marketing Limited, a subsidiary of Teva Pharmaceuticals (“ABIC”), under which we granted ABIC exclusive rights to seek marketing approval in Israel for our NeuVax product candidate for intradermal injection for the treatment of breast cancer following its approval by the FDA or the European Medicines Agency, and to market, sell and distribute NeuVax in Israel assuming such approval is obtained. ABIC’s rights also include a right of first refusal in Israel for all future indications for which NeuVax may be approved. Under the license and supply agreement, ABIC will assume responsibility for regulatory registration of NeuVax in Israel, provide financial support for local development, and commercialize the product in the region in exchange for making royalty payments to us based on future sales of NeuVax. ABIC also agrees in the license and supply agreement to purchase from us all supplies of NeuVax at a price determined according to a specified formula.

Effective January 14, 2014, we entered into a strategic development and commercialization partnership with Dr. Reddy’s Laboratories Ltd. (“Dr. Reddy’s”), under which we licensed commercial rights in India to Dr. Reddy’s for NeuVax in breast and gastric cancers. Under the agreement, Dr. Reddy’s will lead the Phase 2 development of NeuVax in India in gastric cancer, significantly expanding the potential patient population addressable with NeuVax.

On January 12, 2014, we acquired worldwide rights to anagrelide controlled release (CR) formulation, which we renamed GALE-401, through our acquisition of Mills Pharmaceuticals, LLC ("Mills") and Mills became a wholly owned subsidiary. GALE-401 contains the active ingredient anagrelide, an FDA-approved product that has been in use since the late 1990s for the treatment of essential thrombocythemia (ET). Mills holds an exclusive license to develop and commercialize anagrelide CR formulation, pursuant to a license agreement with BioVascular, Inc. Under the terms of the license agreement, Mills has agreed to pay BioVascular, Inc. a mid-to-low single digit royalty on net revenue from the sale of licensed products as well as future cash milestone payments based on the achievement of specified regulatory milestones. Mills is also responsible for patent prosecution and maintenance.