License and Other Agreements (Tables)
6 Months Ended
Jun. 30, 2018
License And Other Agreements Tables Abstract  
Schedule of Fair Value Warrants Using Black-Scholes pricing Model

The fair value of the warrants issued to MacroGenics were measured at issuance on May 7, 2018 using the Black-Scholes option pricing model based on the following assumptions:

 

 

Fair value of common stock on May 7, 2018   $ 2.58  
Exercise Price   $ 2.50  
Expected volatility     62.0 %
Expected dividends      
Contractual term (in years)     7.0  
Risk-free interest rate     2.86 %