Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Stock Options Narrative) (Details)

v3.5.0.2
Stockholders' Equity (Stock Options Narrative) (Details)
12 Months Ended
Dec. 11, 2015
USD ($)
$ / shares
shares
Nov. 20, 2015
USD ($)
$ / shares
shares
Sep. 23, 2015
USD ($)
Item
$ / shares
shares
Aug. 05, 2015
USD ($)
$ / shares
shares
Jun. 08, 2015
USD ($)
$ / shares
shares
Dec. 11, 2014
USD ($)
Item
$ / shares
shares
Nov. 24, 2014
USD ($)
$ / shares
shares
Sep. 16, 2014
USD ($)
Item
$ / shares
shares
Sep. 04, 2014
USD ($)
$ / shares
shares
Apr. 30, 2016
USD ($)
shares
Apr. 30, 2015
USD ($)
Nov. 30, 2015
shares
Sep. 30, 2014
shares
Jul. 31, 2014
shares
Mar. 13, 2012
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Options granted, exercise price | $ / shares         $ 0.168                    
Share based compensation expense                   $ 308,260 $ 456,871        
Director [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares           100,000   200,000              
Number of directors to whom stock option granted | Item               2              
Number of employee to whom stock option granted | Item           8                  
Options granted, exercise price | $ / shares           $ 0.2026   $ 0.20              
Fair value of stock options granted           $ 7,000   $ 12,000              
CEO and the Board of Directors [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares                 2,600,000            
Options granted, exercise price | $ / shares                 $ 0.155            
Fair value of stock options granted                 $ 130,000            
CFO [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares             300,000                
Options granted, exercise price | $ / shares             $ 0.234                
Fair value of stock options granted             $ 21,000                
2012 Equity Incentive Plan [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Equity Incentive Plan, shares authorized | shares                       20,300,000 16,300,000 14,300,000 9,300,000
Equity Incentive Plan, shares remaining | shares                   2,173,898          
CEO [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Fair value of grants $ 105,000                            
Vesting period 3 years                            
Options granted, exercise price | $ / shares $ 0.175                            
Weighted average recognition period 10 years                            
Options granted | shares 1,500,000                            
Director [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares   250,000                          
Number of directors to whom stock option granted   3                          
Fair value of grants   $ 37,500                          
Vesting period   3 years                          
Options granted, exercise price | $ / shares   $ 0.165                          
Options granted | shares   750,000                          
Employee [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares     465,000                        
Number of employee to whom stock option granted | Item     39                        
Fair value of grants     $ 48,600                        
Vesting period     3 years                        
Options granted, exercise price | $ / shares     $ 0.131                        
Unrecognized compensation cost                   $ 437,000          
Weighted average recognition period                   2 years 8 months 12 days          
Vice President [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares       500,000                      
Fair value of grants       $ 30,000                      
Vesting period       3 years                      
Options granted, exercise price | $ / shares       $ 0.18                      
CFO [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares         300,000                    
Fair value of grants         $ 18,000                    
Chief Operating Officer [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares         700,000                    
Fair value of grants         $ 42,000                    
Chief Academic Officer [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Stock options issued during period | shares         1,000,000                    
Fair value of grants         $ 60,000                    
Non-employee [Member]                              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Unrecognized compensation cost                            
Share based compensation expense                   $ 748