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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of Warrant Derivative Liabilities

The following table presents the assumptions used for the warrant derivative liabilities under the Black-Scholes option-pricing model:

    As of March 31, 2020     As of December 31, 2019  
    Strome
Warrants
    B. Riley
Warrants
    Strome
Warrants
    B. Riley
Warrants
 
Expected life     3.21       5.55       3.45       5.80  
Risk-free interest rate     0.29 %     0.46 %     1.62 %     1.76 %
Volatility factor     128.74 %     129.92 %     144.54 %     127.63 %
Dividend rate     0 %     0 %     0 %     0 %
Transaction date closing market price   $ 0.77     $ 0.77     $ 0.80     $ 0.80  
Exercise price   $ 0.50     $ 1.00     $ 0.50     $ 1.00  

Schedule of Valuation Activity for Warrants Accounted for Derivative Liability

The following table represents the carrying amounts and change in valuation for the Company’s warrants accounted for as a derivative liability and classified within Level 3 of the fair-value hierarchy:

 

   

As of and Three Months Ended

March 31, 2020

   

As of and Three Months Ended

March 31, 2019

 
    Carry
Amount at
Beginning of
Period
    Change in
Valuation
    Carrying
Amount at
End of Period
    Carry
Amount at
Beginning of
Period
    Change in
Valuation
    Carrying
Amount at
End of Period
 
L2 Warrants   $ -     $ -     $ -     $ 418,214     $ 121,026     $ 539,240  
Strome Warrants     1,036,687       (110,081 )     926,606       587,971       170,144       758,115  
B. Riley Warrants     607,513       (29,138 )     578,375       358,050       84,525       442,575  
Total   $ 1,644,200     $ (139,219 )   $ 1,504,981     $ 1,364,235     $ 375,695     $ 1,739,930