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ORGANIZATION (Details Narrative) - USD ($)
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Accumulated deficit $ 300,273,828   $ 295,772,879  
Net (loss) income (4,500,949) $ (5,682,056)    
Cash and cash equivalents 96,698,232 32,619,064 43,510,422 $ 38,000,171
Current liabilities 1,850,348   $ 4,185,892  
License and contract revenue $ 97,379 $ 34,505