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Note 5 - Prepaid Expenses
3 Months Ended
Mar. 31, 2020
Notes to Financial Statements  
Prepaid Expenses [Text Block]
NOTE
5:
PREPAID EXPENSES
 
Prepaid expenses consisted of the following:
 
   
As of March 31,
   
As of December 31,
 
   
2020
   
2019
 
Prepaid research and development
  $
712,387
    $
507,733
 
Prepaid insurance
   
280,098
     
222,476
 
Professional services
   
278,298
     
108,850
 
Financial exchange fees
   
32,250
     
-
 
Retainer and security deposits
   
14,218
     
14,218
 
Prepaid rent
   
17,952
     
4,275
 
Other
   
1,917
     
4,792
 
Total prepaid expenses
  $
1,337,120
    $
862,344