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Earn-out Milestone Liability (Tables)
 3 Months Ended
Mar. 31, 2021
Hercules Warrant [Member]  
Schedule of Changes in Earn-out Milestone Liability

The following is a summary of the changes in the earn-out milestone liability for the three-month period ended March 31, 2021:

 

Balance at January 1, 2021   $ (7,018,000 )
Non-cash loss from the change in fair value     (151,000 )
Balance at March 31, 2021   $ (7,169,000 )
Schedule of Risk Adjustment Assessment

The following is a schedule of the Company’s risk-adjustment assessment of each milestone:

 

Date  

Risk-adjustment Assessment

of Achieving Each Milestone

     Discount Rate    

Estimated Time

to Achieve

  
                   
March 31, 2021     80 %     9 %     0.29 to 1.29 years  
December 31, 2020     80 %     9 %     0.54 to 1.54 years  
                         
March 31, 2020     80 %     9 %     1.04 to 2.04 years  
December 31, 2019     80 %     9 %     1.12 to 2.12 years