Other Long-Term Liabilities (Details 2) (USD $)	3 Months Ended		6 Months Ended		1 Months Ended	3 Months Ended	6 Months Ended	1 Months Ended	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2013 Product Development and Licensing Agreement [Member]	Jun. 30, 2014 Product Development and Licensing Agreement [Member]	Jun. 30, 2014 Product Development and Licensing Agreement [Member]	May 31, 2014 Collaborative Arrangement [Member]	Jun. 30, 2014 Collaborative Arrangement [Member]
REVENUE
Approved project plan for the development services					$ 4,800,000
Term of the agreement					3 years			5 years
Upfront payment recognized as revenue over the term of the agreement					1,300,000			5,000,000
Contracts and Grants	$ 392,000	$ 50,000	$ 773,000	$ 100,000		$ 400,000	$ 700,000		$ 200,000
Reimbursement of external costs incurred by the company (as a percent)								50.00%