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Equity Instruments (Details 5) - $ / shares
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Number of Warrants      
Number of Warrants Outstanding, Beginning Balance 14,342 5,538  
Issuance of settlement warrants to initial investors   221  
Warrants issued to investors in connection with the registered offering   15,051  
Warrants issued to placement agents for the registered offering   1,009  
Warrants issued in connection with the August 2017 private offering 296,006    
Warrants issued to underwriters in connection with the August 2017 private offering 19,749    
Warrants issued in connection with the March 2018 public offering 1,533,356    
Warrants issued to investor 100,000    
Warrants expired (42)    
Warrants exercised (80,750) (7,477)  
Number of Warrants Outstanding, Ending Balance 1,882,661 14,342 5,538
Weighted Average Exercise Price      
Weighted Average Exercise Price, Outstanding Beginning Balance $ 1,005.80 $ 2,480.40  
Issuance of settlement warrants to initial investors   1,600.00  
Warrants issued to investors in connection with the registered offering   744.00  
Warrants issued to placement agents for the registered offering   300.00  
Warrants issued in connection with the August 2017 private offering 72.00    
Warrants issued to underwriters in connection with the August 2017 private offering 72.00    
Warrants issued in connection with the March 2018 public offering 10.80    
Warrants issued to investor 10.80    
Warrants expired 21,744.00    
Warrants exercised 8.20 300.00  
Weighted Average Exercise Price, Outstanding Ending Balance $ 25.94 $ 1,005.80 $ 2,480.40
Weighted Average Remaining Contractual Life in Years      
Weighted Average Remaining Contractual Life in Years, Outstanding, Beginning Balance 4 years 7 months 10 days 4 years 2 months 23 days 4 years 8 months 16 days