Goodwill and Other Intangible Assets (Schedule of Identifiable Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 16,656
Accumulated Amortization	(738)
Intangible Assets, Net	15,918
Proprietary adjuvant technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,475
Accumulated Amortization	(383)
Intangible Assets, Net	11,092
Collaboration agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,181
Accumulated Amortization	(355)
Intangible Assets, Net	$ 4,826