Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details Narrative)

v3.10.0.1
Stock-Based Compensation (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Oct. 29, 2018
Oct. 26, 2018
Oct. 23, 2018
Aug. 22, 2018
Jan. 31, 2019
Dec. 31, 2018
Oct. 31, 2018
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2019
Jan. 31, 2018
Purchase price of incentive stock options as a percentage of its fair value                   85.00%  
Number of stock options cancelled                   1,943,118  
Options granted to purchase shares                   2,616,000  
Term of stock options                   1 year 7 months 2 days  
Exercise price                   $ 0.86  
Shares available for grant         974,128     974,128   974,128  
Intrinsic value of options outstanding         $ 425,000     $ 425,000   $ 425,000  
Intrinsic value of options exercisable         41,000     41,000   41,000  
Unrecognized stock-based compensation expenses         $ 3,000,000     $ 3,000,000   $ 3,000,000  
Weighted-average grant date fair value of stock options granted               $ 0.46 $ 1.37 $ 0.57 $ 1.29
Research And Development Expense [Member]                      
Stock-based compensation costs               $ 250,000 $ 200,000 $ 1,100,000 $ 400,000
General And Administrative Expense [Member]                      
Stock-based compensation costs               850,000 2,100,000 1,800,000 2,300,000
Restricted Stock Units (RSUs) [Member]                      
Stock-based compensation costs               $ 200,000 200,000 $ 400,000 $ 300,000
Options granted to purchase shares             50,000        
Exercise price             $ 1.64        
Number of granted shares vested 12,500 25,000         37,500        
Number of shares vesting percentage   25.00%                  
Number of shares vesting, description   The Company's Board of Directors approved the accelerated vesting of 25% of the outstanding restricted stock units (RSUs) held by the employee. The RSUs, which originally vest on the third anniversary of the grant date, or March 29, 2020, were accelerated to vest on October 26, 2018.                  
Modification of accrued expense on unvested stock units   $ 63,278                  
Fair value of vested stock grants   $ 44,250                  
Number of restricted stock outstanding         1,138,541     1,138,541   1,138,541  
Restricted Stock Units (RSUs) [Member] | October 29, 2019 [Member]                      
Number of granted shares vested         12,500            
Restricted Stock Units (RSUs) [Member] | October 29, 2020 [Member]                      
Number of granted shares vested         12,500            
Restricted Stock Units (RSUs) [Member] | October 29, 2021 [Member]                      
Number of granted shares vested         12,500            
Maximum [Member]                      
Maturity                   6 years 6 months 6 years 6 months
Minimum [Member]                      
Maturity                   5 years 5 years
Individual [Member] | Stock Option Cancellation Agreements [Member]                      
Number of stock options cancelled       300,000              
Number of restricted stock issued       175,000              
Stock-based compensation costs       $ 135,425              
Two Consultants [Member] | Stock Option Cancellation Agreements [Member]                      
Number of stock options cancelled     535,000                
Stock-based compensation costs     $ 377,278                
Employees [Member]                      
Options granted to purchase shares                   200,000  
Term of stock options                   10 years  
Vesting period of stock options granted                   3 years  
Exercise price                   $ 1.64  
Consultants [Member]                      
Stock-based compensation costs               $ 205,788 $ 734,250 $ 449,348 $ 843,250
Options granted to purchase shares                   500,000  
Term of stock options                   10 years  
Number of shares issued for service               143,000 375,000 327,000 475,000
Number of shares issued for service, value               $ 229,190 $ 734,250 $ 480,750 $ 843,250
Consultants [Member] | Maximum [Member]                      
Exercise price                   $ 1.43  
Consultants [Member] | Minimum [Member]                      
Exercise price                   $ 0.8461  
Mr. Daniel J. O'Connor [Member] | Restricted Stock Units (RSUs) [Member]                      
Options granted to purchase shares           750,000          
Exercise price           $ 0.6001          
Number of granted shares vested           62,500          
Number of shares vesting, description           The units vest as follows: 62,500 units vested on January 31, 2019, and the remaining 687,500 units vest in equal quarterly installments of 62,500 units beginning on April 30, 2019 and ending on October 31, 2021.          
Number of unit remaining available to vest           687,500          
Mr. Daniel J. O'Connor [Member] | Equal Quarterly Installments [Member] | Restricted Stock Units (RSUs) [Member]                      
Number of unit remaining available to vest           62,500          
Employees, Directors and Consultants [Member]                      
Stock-based compensation costs               $ 1,100,000 $ 2,300,000 $ 2,900,000 $ 2,700,000
2011 Plan [Member]                      
Number of shares authorized for issuance to awards granted         1,000,000     1,000,000   1,000,000  
Provisional percentage of outstanding stock owned by stockholders                   10.00%  
2011 Plan [Member] | Minimum [Member]                      
Purchase price of incentive stock options as a percentage of its fair value                   100.00%  
Exercise price as a percentage of fair value of common stock                   110.00%  
2011 Plan [Member] | Common Stock [Member]                      
Number of shares authorized for issuance to awards granted         9,500,000     9,500,000   9,500,000  
2011 Plan [Member] | Common Stock [Member] | Maximum [Member]                      
Maximum shares granted per fiscal year per individual                   500,000  
Stock option exercisable period                   10 years  
2011 Plan [Member] | Employees, Directors and Consultants [Member]                      
Employee stock purchase program description                   The 2011 Plan authorizes a total of 7,500,000 for issuance thereunder, and includes an automatic increase of the number of shares of common stock reserved thereunder on the first business day of each calendar year by the lesser of: (i) 3% of the shares of the Company's common stock outstanding as of the last day of the immediately preceding calendar year; (ii) 1,000,000 shares; or (iii) such lesser number of shares as determined by the Company's Board of Directors.  
Number of shares authorized for issuance to awards granted         7,500,000     7,500,000   7,500,000  
Percentage of shares of common stock outstanding         3.00%     3.00%   3.00%  
2011 Plan [Member] | Employees [Member]                      
Options granted to purchase shares                   1,241,000 933,500
Term of stock options                   10 years 10 years
Vesting period of stock options granted                   3 years 3 years
2011 Plan [Member] | Employees [Member] | Maximum [Member]                      
Exercise price                   $ 1.58 $ 1.32
2011 Plan [Member] | Employees [Member] | Minimum [Member]                      
Exercise price                   $ 0.6001 $ 0.92
2011 Plan [Member] | Directors [Member]                      
Options granted to purchase shares                   675,000 450,000
Term of stock options                   10 years 10 years
Vesting period of stock options granted                     1 year
2011 Plan [Member] | Directors [Member] | Maximum [Member]                      
Vesting period of stock options granted                   3 years  
Exercise price                   $ 0.8412 $ 1.94
2011 Plan [Member] | Directors [Member] | Minimum [Member]                      
Vesting period of stock options granted                   1 year  
Exercise price                   $ 0.655 $ 0.979
2011 Plan [Member] | Consultants [Member]                      
Options granted to purchase shares                     125,000
Term of stock options                     10 years
2011 Plan [Member] | Consultants [Member] | Maximum [Member]                      
Exercise price                     $ 1.32
2011 Plan [Member] | Consultants [Member] | Minimum [Member]                      
Exercise price                     $ 1.00
2011 Plan [Member] | Mr. Daniel J. O'Connor [Member]                      
Options granted to purchase shares                     2,500,000
Vesting period of stock options granted                     2 years
Number of granted shares vested                     1,000,000
2011 Plan [Member] | Mr. Daniel J. O'Connor [Member] | Performance Stock Option Award [Member]                      
Options granted to purchase shares                     250,000
2011 Plan [Member] | Mr. Daniel J. O'Connor [Member] | Tranche One [Member]                      
Options granted to purchase shares                     1,000,000
2011 Plan [Member] | Mr. Daniel J. O'Connor [Member] | Tranche Two [Member] | Performance Stock Option Award [Member]                      
Options granted to purchase shares                     500,000
2011 Plan [Member] | Mr. Daniel J. O'Connor [Member] | Tranche Three [Member]                      
Options granted to purchase shares                     250,000
ESPP [Member]                      
Number of shares authorized for issuance to awards granted         500,000     500,000   500,000  
Stock-based compensation costs                   $ 6,500 $ 7,000
Shares available for grant         396,616     396,616   396,616  
Discount from market price, offering date                   15.00%  
Fair market value of unvested shares, percentage                   15.00%  
Maturity                   6 months 6 months
Risk free interest rate                   2.22% 1.15%
Volatility rate                   61.83% 62.60%
Forfeitures percentage                   0.00% 0.00%
Dividend                   $ 0 $ 0
ESPP [Member] | Six Month Call On The Unvested Share [Member]                      
Purchase price of incentive stock options as a percentage of its fair value                   85.00%  
ESPP [Member] | July 31, 2016 [Member] | First Offering Period [Member]                      
Shares purchased                   17,789  
ESPP [Member] | January 31, 2017 [Member] | Second Offering Period [Member]                      
Shares purchased                   18,631  
ESPP [Member] | July 31, 2017 [Member] | Third Offering Period [Member]                      
Shares purchased                   21,646  
ESPP [Member] | January 31, 2018 [Member] | Fourth Offering Period [Member]                      
Shares purchased                   18,960  
ESPP [Member] | July 31, 2018 [Member] | Fifth Offering Period [Member]                      
Shares purchased                   12,071