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Fair Value Measurements (Details 1) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Assumptions used to estimate the fair values of the common stock warrants    
Risk-free interest rate 1.10% 1.36%
Expected volatility 61.00% 81.00%
Expected life in years 1 year 8 months 12 days 2 years 8 months 12 days
Dividend yield $ 0 $ 0
OncoSec common stock warrants    
Assumptions used to estimate the fair values of the common stock warrants    
Risk-free interest rate 0.51% 0.64%
Expected volatility 88.00% 90.00%
Expected life in years 3 months  
Dividend yield $ 0 $ 0
OncoSec common stock warrants | Minimum    
Assumptions used to estimate the fair values of the common stock warrants    
Expected life in years   9 months
OncoSec common stock warrants | Maximum    
Assumptions used to estimate the fair values of the common stock warrants    
Expected life in years   1 year 9 months