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Stock-Based Compensation (Details)
3 Months Ended 12 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Risk free interest rate - minimum   1.14%
Risk free interest rate - maximum   1.27%
Expected term (year)   6 years
Expected volatility - minimum   100.50%
Expected volatility - maximum   105.80%
Employee Stock Options [Member]    
Risk free interest rate - minimum 1.77%  
Risk free interest rate - maximum 2.07%  
Expected term (year) 6 years  
Expected volatility - minimum 125.20%  
Expected volatility - maximum 141.20%