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Fair Value Measurement (Tables)
3 Months Ended
Mar. 31, 2016
Fair Value Disclosures [Abstract]  
Financial Assets and Liabilities Measured at Fair Value

The following table presents financial assets and liabilities measured at fair value as of March 31, 2016:

 

     Fair Value Measurement
at Report Date Using
               
     Quoted Prices
in Active Markets
for
Identical Assets
(Level 1)
     Significant
Other
Observable
Inputs
(Level 2)
     Unobservable
Inputs
(Level 3)
     As of
March 31,
2016
 

Financial assets:

           

Cash equivalents:

           

Money market funds

   $ 3,244,966       $ —        $ —        $ 3,244,966   

U.S. Treasury debt obligations

     7,161,851         —          —          7,161,851   
  

 

 

    

 

 

    

 

 

    

 

 

 

Total financial assets

   $ 10,406,817       $ —        $ —        $ 10,406,817   
  

 

 

    

 

 

    

 

 

    

 

 

 

Financial liabilities:

           

Loan payable net of discounts

   $ —        $ —        $ 9,274,959       $ 9,274,959   

Warrant liabilities

     —          —          6,159,671         6,159,671   
  

 

 

    

 

 

    

 

 

    

 

 

 

Total financial liabilities

   $ —        $ —        $ 15,434,630       $ 15,434,630   
  

 

 

    

 

 

    

 

 

    

 

 

 
Roll Forward for Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3)

The following table presents a roll forward for liabilities measured at fair value using significant unobservable inputs (Level 3) for 2016:

 

     Warrant
liabilities
 

Balance at December 31, 2015

   $ 770,964   

Add fair value of warrants issued

     5,666,935   

Less change in fair value of warrants

     (278,228
  

 

 

 

Balance at March 31, 2016

   $ 6,159,671   
  

 

 

 

 

     Loan payable net of discounts  

Balance at December 31, 2015

   $ 10,334,029   

Add amortization of discount

     5,107   

Less repayments of principal

     (1,064,177
  

 

 

 

Balance at March 31, 2016

   $ 9,274,959   
  

 

 

 

Current portion

     358,318   

Non-current portion

     8,916,641   
  

 

 

 

Balance at March 31, 2016

   $ 9,274,959