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Equity Instruments (Details 2) - $ / shares
 3 Months Ended 12 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Number of Warrants Outstanding    
Number of Warrants Outstanding, Beginning Balance 286,049  
Warrants issued to investors in connection with the private offering 5,920,002  
Warrants issued to underwritters for the private offering 394,669  
Number of Warrants Outstanding, Ending Balance 6,600,720 286,049
Weighted Average Exercise Price    
Weighted Average Exercise Price, Outstanding Beginning Balance $ 50.29  
Warrants issued to investors in connection with the private offering 3.60  
Warrants issued to underwritters for the private offering 3.60  
Weighted Average Exercise Price, Outstanding Ending Balance $ 5.62 $ 50.29
Weighted Average Remaining Contractual Life    
Weighted Average Remaining Contractual Life, Warrants Outstanding (in years) 4 years 10 months 10 days 4 years 2 months 23 days