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Fair Value Measurements (Tables)
3 Months Ended
Sep. 30, 2019
Fair Value Disclosures [Abstract]  
Schedule of Estimated Fair Value of Derivative Liability

At September 30, 2019, the estimated fair value of derivative liabilities measured on a recurring basis are as follows:

 

   Fair Value Measurements at
   September 30, 2019
   Level 1  Level 2  Level 3  Total
             
Derivative liability – Warrants  $—     $—     $8,109,724   $8,109,724 
Derivative liability -Conversion option on convertible debenture   —      —      2,533,668    2,533,668 
   Total derivatives  $—     $—     $10,643,392   $10,643,392 
Schedule of Liabilities Measured at Fair Value

The following table presents the activity for liabilities measured at fair value using unobservable inputs for the three months ended September 30, 2019:

 

   Derivative liabilities - Warrants  Derivative liability - Conversion Option on Convertible Debenture
       
Beginning balance at July 1, 2019  $—     $—   
Additions to level 3 liabilities   8,367,012    2,638,966 
Change in in fair value of level 3 liability   (257,288)   (105,298)
Transfer in and/or out of Level 3   —      —   
Balance at September 30, 2019  $8,109,724   $2,533,668