Post-effective amendment to a registration statement that is not immediately effective upon filing

Revenue - Balance Sheet Items Related to FP7 Agreement (Detail)

v3.3.1.900
Revenue - Balance Sheet Items Related to FP7 Agreement (Detail) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Cash (restricted cash) $ 17,302 $ 0
Accounts payable trade 1,058,536 1,260,015
Seventh Research Framework Program (FP7 Agreement) [Member]    
Research and Development Arrangement, Contract to Perform for Others [Line Items]    
Other current assets (receivables from FP7 grant) 980,936 857,489
Cash (restricted cash) 17,302  
Accounts payable trade $ 424,441 $ 325,864