Annual report pursuant to section 13 and 15(d)

Stock-Based Compensation (Details)

v2.4.0.6
Stock-Based Compensation (Details) (USD $)
 1 Months Ended 12 Months Ended
May 31, 2011
Jul. 31, 2012
Stock-based compensation    
Options granted to purchase shares   3,260,000
Expected volatility, minimum (as a percent)   85.96%
Expected volatility, maximum (as a percent)   125.00%
Risk-free interest rate, minimum (as a percent)   0.35%
Risk-free interest rate, maximum (as a percent)   2.08%
Expected forfeiture rate (as a percent)   0.00%
Expected dividend yield (as a percent)   0.00%
Stock-based compensation expense recognized   333,000
Number of Shares Outstanding    
Granted (in shares)   3,260,000
Forfeited/Cancelled (in shares)   (85,000)
Balance at the end of the period (in shares)   3,175,000
Option Shares Outstanding    
Granted (in dollars per share)   0.24
Forfeited/Cancelled (in dollars per share)   0.40
Balance at the end of the period (in dollars per share)   0.24
Aggregate Intrinsic Value    
Balance at the end of the period   24,000
Maximum
    
Stock-based compensation    
Expected term   10 years
Minimum
    
Stock-based compensation    
Expected term   3 years
Research and development expense
    
Stock-based compensation    
Stock-based compensation expense recognized   89,000
General and administrative expense
    
Stock-based compensation    
Stock-based compensation expense recognized   244,000
Employees
    
Stock-based compensation    
Term of stock options   10 years
Options granted to purchase shares   1,300,000
Vesting period   2 years
Exercise price, high end of the range (in dollars per share)   0.40
Exercise price, low end of the range (in dollars per share)   0.21
Number of Shares Outstanding    
Granted (in shares)   1,300,000
Director
    
Stock-based compensation    
Term of stock options   10 years
Options granted to purchase shares   400,000
Vesting period   1 year
Exercise price, high end of the range (in dollars per share)   0.40
Exercise price, low end of the range (in dollars per share)   0.21
Number of Shares Outstanding    
Granted (in shares)   400,000
Consultant
    
Stock-based compensation    
Options granted to purchase shares   1,560,000
Exercise price, high end of the range (in dollars per share)   0.39
Exercise price, low end of the range (in dollars per share)   0.18
Number of Shares Outstanding    
Granted (in shares)   1,560,000
Consultant | Maximum
    
Stock-based compensation    
Term of stock options   10 years
Consultant | Minimum
    
Stock-based compensation    
Term of stock options   3 years
2011 Plan
    
Stock-based compensation    
Number of shares authorized 5,200,000  
2011 Plan | Maximum
    
Stock-based compensation    
Term of stock options 10 years 10 years
2011 Plan | Minimum
    
Stock-based compensation    
Purchase price of incentive stock options as a percentage of its fair value 100.00% 100.00%
Provisional percentage of outstanding stock owned by stockholders 10.00% 10.00%
Exercise price as a percentage of fair value of common stock for stockholders who own more than 10% of outstanding stock 110.00% 110.00%