Quarterly report pursuant to Section 13 or 15(d)

Collaborative and Other Agreements - NIAID - Additional Information (Details)

v3.4.0.3
Collaborative and Other Agreements - NIAID - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Oct. 31, 2011
Mar. 31, 2016
Mar. 31, 2015
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]      
Recognition of revenue   $ 1,471 $ 2,388
National Institute of Allergy and Infectious Diseases "NIAID" [Member]      
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]      
Total contract amount awarded $ 28,000    
Contractual term 5 years    
Recognition of revenue   $ 1,100 $ 1,600