XML 80 R87.htm IDEA: XBRL DOCUMENT v3.20.1
License agreements (Details) - USD ($)
Oct. 23, 2018
Oct. 31, 2017
Feb. 29, 2016
Shire LLC | NDA 204326 | Maximum      
License agreements      
Payment of non-refundable license fee     $ 1,000,000
Shire LLC | NDA 204325 | Maximum      
License agreements      
Payment of non-refundable license fee   $ 1,000,000  
NeuRx License      
License agreements      
Upfront payment to be paid $ 175,000