Related Party Transactions (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Exela PharmaSci, Inc [Member]
Related Party Transaction [Line Items]
Collaborative research and development revenue	$ 1,943	$ 1,044
Director [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 30
Parent Company [Member] | CMEA Ventures [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Investment, Ownership Percentage	7.60%
Exela PharmaSci, Inc [Member] | CMEA Ventures [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Investment, Ownership Percentage	10.00%