Significant Agreements (Narrative) (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 61 Months Ended | | |
May. 31, 2014USD ($) | Mar. 31, 2011USD ($) | Mar. 31, 2016USD ($) | Mar. 31, 2015USD ($) | Mar. 31, 2016USD ($) | Feb. 29, 2016USD ($)ft² | Jan. 22, 2016EUR (€)ft² | Jan. 22, 2016USD ($)ft² |
United Kingdom [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Area of real estate property | ft² | | | | | | | 8,549 | 8,549 |
Rent expense | | | | | | | € 726,665 | $ 1 |
New York [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Area of real estate property | ft² | | | | | | 10,785 | | |
Rent expense | | | | | | $ 1 | | |
Security deposit | | | | | | $ 0.3 | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Nonsoftware License Arrangement [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Development milestone reached | | | | | $ 1 | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Nonsoftware License Arrangement [Member] | Up-front Payment [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
License agreement payment | | $ 15 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Nonsoftware License Arrangement [Member] | Additional Development Receivable [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 30 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Nonsoftware License Arrangement [Member] | Additional Regulatory Approval Receivable [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 70 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Nonsoftware License Arrangement [Member] | Additional Sales Receivable [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 200 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Japan [Member] | Nonsoftware License Arrangement [Member] | Additional Regulatory Approval Receivable [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 15 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | China [Member] | Nonsoftware License Arrangement [Member] | Additional Regulatory Approval Receivable [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 10 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | United States [Member] | Nonsoftware License Arrangement [Member] | Additional Regulatory Approval Receivable [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 5 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Korea [Member] | Nonsoftware License Arrangement [Member] | Up-front Payment [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
License agreement payment | $ 1 | | | | | | | |
License arrangement, deferred revenue, recognized | | | $ 0.4 | $ 1.4 | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Criteria One [Member] | Nonsoftware License Arrangement [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 5 | | | | | | |
License arrangement, milestone benchmark | | 50 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Criteria Two [Member] | Nonsoftware License Arrangement [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 10 | | | | | | |
License arrangement, milestone benchmark | | 100 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Criteria Three [Member] | Nonsoftware License Arrangement [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 20 | | | | | | |
License arrangement, milestone benchmark | | 200 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Criteria Four [Member] | Nonsoftware License Arrangement [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 40 | | | | | | |
License arrangement, milestone benchmark | | 400 | | | | | | |
Dainippon Sumitomo Pharma Co Ltd [Member] | Criteria Five [Member] | Nonsoftware License Arrangement [Member] | | | | | | | | |
Significant Agreements [Line Items] | | | | | | | | |
Contingent arrangement receivable amount | | 120 | | | | | | |
License arrangement, milestone benchmark | | $ 1,200 | | | | | | |