Quarterly report pursuant to Section 13 or 15(d)

Convertible Instruments - Additional Information (Detail)

v3.5.0.2
Convertible Instruments - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Sep. 21, 2015
Jun. 23, 2015
Feb. 06, 2015
Sep. 26, 2014
Aug. 31, 2016
Aug. 31, 2015
May 31, 2015
May 31, 2016
May 31, 2015
May 31, 2010
Aug. 24, 2016
Mar. 18, 2016
Mar. 17, 2016
May 31, 2013
Apr. 30, 2010
Class of Stock [Line Items]                              
Common stock, shares authorized         350,000,000     250,000,000     350,000,000 250,000,000 200,000,000   100,000,000
Common stock, par value         $ 0.001     $ 0.001              
Amortization of convertible notes           $ 1,006,590                  
Amortization of discount on related party convertible notes           94,344   $ 94,344              
Loss on extinguishment of convertible notes           (584,177)                  
Change in fair value of derivative liability           646,505   646,505              
Inducement interest           757,871                  
Commission expense               108,000              
Common Stock                              
Class of Stock [Line Items]                              
Number of common shares issued upon conversion of preferred stock         10                    
Conversion price         $ 0.50                    
Short-Term Convertible Notes                              
Class of Stock [Line Items]                              
Amortization of convertible notes         $ 0 1,006,590                  
Convertible notes payable, net               0              
Alpha Venture Capital Partners, L.P. | 3-Month Unsecured Convertible Promissory Note                              
Class of Stock [Line Items]                              
Convertible note, face amount             $ 1,500,000   $ 1,500,000            
2-Year Unsecured Convertible Promissory Note | Alpha Venture Capital Partners, L.P.                              
Class of Stock [Line Items]                              
Convertible note, face amount             $ 2,000,000   $ 2,000,000            
2013 Convertible Notes                              
Class of Stock [Line Items]                              
Convertible note, face amount                           $ 6,588,250  
Convertible note maturity start date         Nov. 30, 2013                    
Convertible note maturity end date         Mar. 06, 2016                    
Amortization of convertible notes         $ 0 4,100                  
Principal amount of notes converted               50,000              
2013 Convertible Notes | Convertible Note at $0.75 per Share                              
Class of Stock [Line Items]                              
Conversion price                           $ 0.75  
Convertible note, principal amount         $ 0     0           $ 6,208,250  
2013 Convertible Notes | Convertible Note at $0.65 per Share                              
Class of Stock [Line Items]                              
Conversion price                           $ 0.65  
Convertible note, principal amount                           $ 380,000  
2013 Convertible Notes | Minimum                              
Class of Stock [Line Items]                              
Convertible notes, interest rate                           5.00%  
2013 Convertible Notes | Maximum                              
Class of Stock [Line Items]                              
Convertible notes, interest rate                           10.00%  
2013 Convertible Notes | Investor                              
Class of Stock [Line Items]                              
Interest on convertible notes payment start date         Apr. 01, 2013                    
2013 Convertible Notes | Detachable Common Stock Warrants | Investor                              
Class of Stock [Line Items]                              
Common stock warrant term         2 years                    
Warrants to purchase common shares, shares         8,527,984                    
2013 Convertible Notes | Detachable Common Stock Warrants | Investor | Minimum                              
Class of Stock [Line Items]                              
Exercise price of warrants, per share         $ 0.75                    
2013 Convertible Notes | Detachable Common Stock Warrants | Investor | Maximum                              
Class of Stock [Line Items]                              
Exercise price of warrants, per share         $ 2.00                    
AVCP Convertible Notes                              
Class of Stock [Line Items]                              
Change in fair value of derivative liability           646,505                  
AVCP Convertible Notes | Alpha Venture Capital Partners, L.P.                              
Class of Stock [Line Items]                              
Conversion price             $ 0.675   $ 0.675            
Sale of convertible notes             $ 4,000,000                
Percentage of weighted average price per share             90.00%                
Weighted average price of deemed issued shares             $ 0.75   $ 0.75            
Increase / Decrease in number of shares of common stock             5,185,185   5,185,185            
Amortization of discount on related party convertible notes         $ 0 $ 94,344                  
Principal amount of notes converted   $ 3,535,627                          
Common stock issued upon conversion of notes   5,237,966                          
AVCP Convertible Notes | Alpha Venture Capital Partners, L.P. | 3-Month Unsecured Convertible Promissory Note                              
Class of Stock [Line Items]                              
Preferred Stock, Share issuance price             $ 0.9444   $ 0.9444            
Conversion price             $ 1.00   $ 1.00            
Convertible notes, interest rate             1.20%   1.20%            
Convertible note maturity date         May 05, 2015                    
Additional convertible promissory notes that may be issued             $ 6,000,000   $ 6,000,000            
Percentage reduction to conversion price                 10.00%            
Convertible note, conversion price description         The conversion price was subject to (i) adjustment for stock splits and similar corporate events and (ii) reduction to a price per share that is 10% below the lowest sale price that is below $.9444 per share, for shares of common stock sold or deemed sold in future securities offerings, including sales to AVCP and its designees subject to certain exempt transactions.                    
AVCP Convertible Notes | Alpha Venture Capital Partners, L.P. | Previously Reported                              
Class of Stock [Line Items]                              
Increase / Decrease in number of shares of common stock             3,500,000   3,500,000            
AVCP Convertible Notes | 2-Year Unsecured Convertible Promissory Note | Alpha Venture Capital Partners, L.P.                              
Class of Stock [Line Items]                              
Conversion price             $ 1.00   $ 1.00            
Convertible notes, interest rate             5.00%   5.00%            
Common stock warrant term                 2 years            
Convertible note maturity date                 Sep. 26, 2016            
AVCP Convertible Notes | Warrants Expire on December 31, 2019 | Alpha Venture Capital Partners, L.P.                              
Class of Stock [Line Items]                              
Warrants to purchase common shares, shares       250,000                      
Exercise price of warrants, per share       $ 0.50                      
Warrants, expiration date         Dec. 31, 2019                    
Term of warrants       5 years                      
AVCP Convertible Notes | Warrants Exercisable on February 28, 2020 | Alpha Venture Capital Partners, L.P.                              
Class of Stock [Line Items]                              
Warrants to purchase common shares, shares     75,000                        
Exercise price of warrants, per share     $ 0.50                        
Warrants, expiration date         Feb. 29, 2020                    
Term of warrants     5 years                        
AVCP Convertible Notes | Additional 5-year Warrant | Alpha Venture Capital Partners, L.P.                              
Class of Stock [Line Items]                              
Exercise price of warrants, per share   $ 0.675                          
Term of warrants   5 years                          
Common stock issued upon conversion of notes   1,000,000                          
Loss on extinguishment of convertible notes   $ (584,177)                          
Change in fair value of derivative liability   646,505                          
Inducement interest   $ 757,871                          
Short-Term Convertible Notes                              
Class of Stock [Line Items]                              
Principal amount of notes converted               $ 525,000              
Common stock issued upon conversion of notes               723,773              
Inducement interest               $ 330,000              
Aggregate original principal amount of Short-Term Convertible Notes $ 2,700,000                            
Accrued but unpaid interest               17,830              
Convertible notes, repayment of principal and interest               $ 789,000              
Short-Term Convertible Notes | 6-Month Unsecured Convertible Promissory Notes                              
Class of Stock [Line Items]                              
Conversion price $ 0.675           $ 0.75   $ 0.75            
Convertible notes, interest rate             7.00%   7.00%            
Principal amount of notes converted                 $ 1,300,000            
Proceeds from issuance of debt                 $ 4,000,000            
Debt Instrument, Term                 6 months            
Conversion price, discount rate 10.00%                            
Short-Term Convertible Notes | Investor Warrants | 6-Month Unsecured Convertible Promissory Notes                              
Class of Stock [Line Items]                              
Common stock, par value             $ 0.001   $ 0.001            
Warrants to purchase common shares, shares             1,061,586   1,061,586            
Exercise price of warrants, per share             $ 0.75   $ 0.75            
Term of warrants                 5 years            
Short-Term Convertible Notes | Common Stock Warrants                              
Class of Stock [Line Items]                              
Exercise price of warrants, per share $ 0.675                            
Exercise price of warrants, per share, discount rate 10.00%                            
Series B Convertible Preferred Stock                              
Class of Stock [Line Items]                              
Series B Convertible preferred stock, shares issued         95,100     95,100   400,000          
Preferred Stock, Share issuance price                   $ 5.00          
Cash proceeds                   $ 2,009,000          
Series B Convertible preferred stock, shares outstanding         95,100     95,100              
Constructive dividend to Preferred stock holders         $ 6,000,000                    
Liquidation preference on common shares         $ 5.00                    
Dividends are payable to preferred stock holders         0.25                    
Convertible preferred stock, par value         $ 0.001     $ 0.001   $ 0.001