Quarterly report pursuant to Section 13 or 15(d)

Equity Offerings (Details Narrative)

v3.8.0.1
Equity Offerings (Details Narrative) - USD ($)
3 Months Ended
Oct. 25, 2017
Jul. 25, 2017
Oct. 31, 2017
Oct. 31, 2016
Oct. 22, 2017
Warrant to purchase shares of common stock     12,526,340    
Warrant expire term     warrants expire at various dates between December 2017 and May 2025.    
Gross proceeds from offering     $ 8,058,733  
Proceeds from cash exercise of warrants     9,000 13,306  
Aggregate gross sales price     $ 19,048 $ 25,617  
Maximum [Member]          
Warrant to purchase shares of common stock     5,509,642    
Warrant exercise price per share     $ 18.00    
Minimum [Member]          
Warrant exercise price per share     $ 1.25    
Equity Distribution Agreement [Member] | Oppenheimer & Co. Inc [Member]          
Number of common stock shares sold under offering     897,311    
Other expenses     $ 1,100,000    
Prepaid asset expenses         $ 200,000
Equity Distribution Agreement [Member] | Oppenheimer & Co. Inc [Member] | Maximum [Member]          
Aggregate gross sales price   $ 8,400,000      
First October 2017 Offerings [Member]          
Fair value of warrants $ 2,400,000        
Dividend rate        
Expected term of volatility 5 years 6 months        
Volatility rate 75.55%        
Risk-free interest rate 2.12%        
First October 2017 Offerings [Member] | Placement Agent [Member]          
Warrant to purchase shares of common stock 316,256        
Warrant exercise price per share $ 1.68        
Warrant expiry date Oct. 21, 2022        
Gross proceeds from offering $ 7,100,000        
Proceeds from cash exercise of warrants $ 6,200,000        
Percentage of gross proceeds of offering 5.50%        
Offering expenses $ 60,000        
Fair value of warrants $ 200,000        
Dividend rate        
Expected term of volatility 5 years        
Volatility rate 73.25%        
Risk-free interest rate 2.06%        
First October 2017 Offerings [Member] | Accredited Investors [Member]          
Number of common stock shares sold under offering 5,270,934        
Warrant to purchase shares of common stock 3,953,200        
Purchase price per share $ 1.34375        
Warrant exercise price per share $ 1.25        
Warrant exercisable date Oct. 25, 2017        
Warrant expiry date Apr. 25, 2022        
Second October 2017 Offerings [Member]          
Fair value of warrants $ 400,000        
Dividend rate        
Expected term of volatility 5 years 6 months        
Volatility rate 75.51%        
Risk-free interest rate 2.12%        
Second October 2017 Offerings [Member] | Placement Agent [Member]          
Warrant to purchase shares of common stock 48,000        
Warrant exercise price per share $ 1.68        
Warrant expiry date Oct. 25, 2022        
Percentage of gross proceeds of offering 5.50%        
Offering expenses $ 15,000        
Fair value of warrants $ 31,000        
Dividend rate        
Expected term of volatility 5 years        
Volatility rate 73.22%        
Risk-free interest rate 2.06%        
Second October 2017 Offerings [Member] | One Accredited Investors [Member]          
Number of common stock shares sold under offering 800,000        
Warrant to purchase shares of common stock 600,000        
Purchase price per share $ 1.34375        
Warrant exercise price per share $ 1.25        
Warrant exercisable date Apr. 27, 2018        
Warrant expiry date Apr. 27, 2022        
Gross proceeds from offering $ 1,100,000        
Proceeds from cash exercise of warrants $ 1,000,000