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Fair Value Measurement (Tables)
9 Months Ended
Sep. 30, 2020
Fair Value Disclosures [Abstract]  
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table represents the Company’s hierarchy for its financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2020 and December 31, 2019:

 

      September 30, 2020  
      Level 1       Level 2       Level 3       Total  
Liabilities:                                
Secured convertible notes   $     $     $     $  
Proceeds investment agreement obligation                     $  
    $     $     $     $  

 

    December 31, 2019  
    Level 1     Level 2     Level 3     Total  
Liabilities:                                
Secured convertible notes   $     $     $ 1,593,809     $ 1,593,809  
Proceeds investment agreement obligation                 6,500,000       6,500,000  
    $     $     $ 8,093,809     $ 8,093,809  
Fair Value Measurements Change in Level 3 Inputs

The following table represents the change in Level 3 tier value measurements:

 

    2019     2020              
    Secured     Secured     Proceeds        
    Convertible     Convertible     Investment        
    Notes     Notes     Agreement     Total  
                         
Balance, December 31, 2019   $ 1,593,809     $     $ 6,500,000     $ 8,093,809  
                                 
Issuance of secured convertible debt           778,859             778,859  
                                 
Conversion of secured convertible debentures     (1,259,074 )     (1,665,666 )           (2,924,740 )
                                 
Repayment of proceeds investment agreement                 (1,250,000 )     (1,250,000 )
                                 
Repayment of secured convertible notes     (747,180 )     (1,000 )           (748,180 )
                                 
Change in fair value of secured convertible debentures and proceeds investment agreement     412,445       887,807       (5,250,000 )     (3,949,748 )
                                 
Balance, September 30, 2020   $     $     $     $