Quarterly report pursuant to Section 13 or 15(d)

Common Stock Transactions (Details Narrative)

v3.7.0.1
Common Stock Transactions (Details Narrative) - USD ($)
1 Months Ended 9 Months Ended
Apr. 30, 2017
May 26, 2016
Nov. 09, 2015
May 31, 2016
Apr. 30, 2017
Apr. 30, 2016
Jul. 31, 2016
Number of common stock shares issued 21,168,194 4,400,000     21,168,194   18,036,263
Net proceeds from offering         $ 0 $ 6,886,095  
May 2016 Registered Direct Offering [Member]              
Number of common stock shares issued   665,049          
May 2016 Registered Direct Offering [Member] | Placement Agents [Member]              
Dividend rate       0.00%      
Expected term of volatility       5 years      
Volatility rate       94.36%      
Risk-free interest rate       1.38%      
Gross proceeds       5.00%      
Legal and clearing firm fees       $ 35,000      
Warrant to purchase, percentage       5.00%      
Warrant expiry date       May 24, 2021      
Fair value of warrants       $ 300,000      
Gross proceeds from offering       9,900,000      
Net proceeds from offering       $ 9,200,000      
May 2016 Registered Direct Offering [Member] | Series A [Member]              
Warrant to purchase shares of common stock   5,509,642          
Warrant exercise price per share   $ 1.69          
Purchase price per share   $ 1.815          
May 2016 Registered Direct Offering [Member] | Series B [Member]              
Warrant to purchase shares of common stock   4,844,593          
Warrant exercise price per share   $ 0.01          
Purchase price per share   $ 1.805          
Common stock excess percentage   4.99%          
May 2016 Registered Direct Offering [Member] | Series B [Member] | Placement Agents [Member]              
Number of common stock shares issued       275,482      
Warrant exercise price per share       $ 2.26875      
May 2016 Series A [Member]              
Warrant term   9 years          
Dividend rate   0.00%          
Expected term of volatility   9 years          
Volatility rate   100.03%          
Risk-free interest rate   1.74%          
Fair value assumption market value   $ 48,446          
November 2015 Public Offering [Member]              
Warrant to purchase shares of common stock 9,494,740   1,071,430   9,494,740    
Warrant exercise price per share     $ 4.50        
Purchase price per share     $ 3.50        
Dividend rate     0.00%        
Expected term of volatility     5 years 18 days        
Volatility rate     88.63%        
Risk-free interest rate     1.75%        
Warrant to purchase, percentage     50.00%        
Warrant expiry date     May 09, 2021        
Fair value of warrants     $ 1,600,000        
Gross proceeds from offering     7,500,000        
Net proceeds from offering     $ 6,900,000        
Shares issued in offering     2,142,860        
Placement agent fees as a percentage of gross proceeds     6.00%        
Non-accountable expense allowance as a percentage of gross proceeds of offering     1.00%        
Sale of stock offering shares     107,143        
November 2015 Public Offering [Member] | Minimum [Member]              
Warrant exercise price per share $ 0.01       $ 0.01    
Warrant expiry description September 2017            
November 2015 Public Offering [Member] | Maximum [Member]              
Warrant exercise price per share $ 18.00       $ 18.00    
Warrant expiry description May 2025            
November 2015 Public Offering [Member] | Placement Agents [Member]              
Warrant exercise price per share     $ 4.375        
Dividend rate     0.00%        
Expected term of volatility     5 years        
Volatility rate     89.08%        
Risk-free interest rate     1.75%        
Warrant to purchase, percentage     5.00%        
Warrant expiry date     Nov. 09, 2020        
Fair value of warrants     $ 200,000        
November 2015 Public Offering [Member] | Series B [Member]              
Warrant to purchase shares of common stock 1,350,000       1,350,000