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Derivative Warrant Liability (Details Textual) - USD ($)
9 Months Ended
Jun. 08, 2017
Jun. 30, 2017
Jun. 08, 2018
Derivative Warrant Liability (Textual)      
Volatility rate   95.00%  
Risk-free interest rate   1.85%  
Estimated life   4 years 6 months 7 days  
Warrants to purchase common stock expired, shares   307,778  
Reclassification of derivative warrant liability to additional paid-in capital   $ (1,433,316)  
2016 Offering [Member]      
Derivative Warrant Liability (Textual)      
Warrants to purchase common stock     140,819
Exercise price of warrants per share     $ 8.25
2017 Public Offering [Member]      
Derivative Warrant Liability (Textual)      
Exercise price of warrants per share     $ 8.25
Description of public offering warrants The per share purchase price in the 2017 Public Offering was $4.125 and, consequently, the exercise price of these warrants was decreased to $4.125    
Exercise price of warrant decreased $ 4.125    
Fair value of warrants to derivative warrant liability $ 641,385,000