Quarterly report pursuant to Section 13 or 15(d)

Recent Other Equity and Common Stock Transactions (Details Narrative)

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Recent Other Equity and Common Stock Transactions (Details Narrative) - USD ($)
9 Months Ended 12 Months Ended
Nov. 09, 2015
Nov. 03, 2015
Jun. 08, 2015
Apr. 30, 2016
Jul. 31, 2015
Warrants issued to purchase shares       3,000,875  
Shares issued in offering 2,142,860   2,469,091    
Share Price $ 3.50   $ 5.50    
Gross proceeds from public offering $ 7,500,000   $ 13,600,000    
Net proceeds from public offering $ 6,900,000   $ 12,500,000    
Dividends paid       $ 0 $ 0
Minimum [Member]          
Warrants exercise price per share       $ 4.375  
Maximum [Member]          
Warrants exercise price per share       $ 24.00  
Warrants Issued With November 2015 Public Offering [Member]          
Warrants issued to purchase shares 1,071,430        
Warrants exercise price per share $ 4.50        
Number of shares of common stock entitled to be purchased as a percentage of shares issued to such investor 50.00%        
Period after issuance the warrants are exercisable 6 months        
Fair value of warrants $ 1,600,000        
Dividend yield 0.00%        
Expected term 5 years 6 months        
Volatility rate 88.63%        
Risk-free interest rate 1.75%        
Warrants Issued With November 2015 Public Offering [Member] | H C Wainwright And Co L L C [Member]          
Warrants exercise price per share   $ 4.375      
Warrant expire date   Nov. 09, 2020      
Placement agent fees as a percentage of offering proceeds   6.00%      
Non-accountable expense allowance as a percentage of gross proceeds of offering   1.00%      
Shares issued to placement agents   107,143      
Fair value of warrants   $ 200,000      
Dividend yield   0.00%      
Expected term   5 years      
Volatility rate   89.08%      
Risk-free interest rate   1.75%      
Warrants Issued With November 2015 Public Offering [Member] | H C Wainwright And Co L L C [Member] | Maximum [Member]          
Percentage of warrants paid to placement agents   5.00%      
Warrants Issued With June2015 Public Offering [Member] | Placement Agents [Member]          
Warrants exercise price per share     $ 6.88    
Warrant expire date     May 12, 2019    
Placement agent fees as a percentage of offering proceeds     6.00%    
Non-accountable expense allowance as a percentage of gross proceeds of offering     1.00%    
Shares issued to placement agents     123,455    
Fair value of warrants     $ 600,000    
Warrants Issued With June2015 Public Offering [Member] | Placement Agents [Member] | Maximum [Member]          
Percentage of warrants paid to placement agents     5.00%