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Research Funding - (Details) - Additional Funding Agreement Terms [Member] - Phase 3 Intus Study [Member] - USD ($)
1 Months Ended
Jun. 30, 2015
Sep. 30, 2015
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Research funding, award amount   $ 17,725,734
Project initiation payment $ 3,000,000  
Future operational milestone payments $ 14,725,734