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Stock-Based Compensation (Tables)
9 Months Ended 12 Months Ended
Apr. 30, 2015
Jul. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Common stock options granted, forfeited or expired and exercised

    Options   Weighted Average Exercise Price per Share   Aggregate Intrinsic Value
                         
Outstanding, August 1, 2014     37,964,390     $ 0.061          
Less: Forfeited or expired     1,215,000       0.716          
Less: Exercised     6,416,316       0.001       129,908  
Outstanding, April 30, 2015     30,333,074     $ 0.048     $ 567,236  
Exercisable, April 30, 2015     30,333,074     $ 0.048     $ 567,236  

 

    Options    

Weighted Average Exercise Price

per Share

Outstanding - August 1, 2011   7,340,182   $ 0.46
Granted   5,851,696   $ 0.001
Forfeited or expired   (912,250)   $ 0.65
Exercised   (1,299,994)   $ 0.001
Outstanding - July 31, 2012   10,979,634   $ 0.26
Granted   24,532,719   $ 0.001
Forfeited or expired   (630,778)   $ 0.75
Exercised   (5,180,378)   $ 0.001
Outstanding - July 31, 2013   29,701,197   $ 0.08
Granted   8,879,499   $ 0.001
Forfeited or expired   (90,000)   $ 0.53
Exercised   (526,306)   $ 0.001
Outstanding - July 31, 2013   37,964,390   $ 0.06
Exercisable - July 31, 2014   37,964,390   $ 0.06

Non-vested common stock options granted, vested and forfeited  

    Options    

Weighted Average Grant Date

Fair Value

Outstanding - August 1, 2011   60,000   $ 0.46
Granted   8,879,499   $ 0.029
Vested   (8,939,499)   $ 0.031
Outstanding - July 31, 2014   -0-     n/a

Information on stock options outstanding  

 

    Options Outstanding and Options Exercisable
Range of Exercise Price   Number Outstanding at July 31, 2014     Weighted Average Exercise Price  

Weighted Average Remaining Life

(Years)

    Aggregate Intrinsic Value
$ 0.001   32,799,390   $ 0.001   3.68      
$ 0.19 - $ 0.38   3,100,000   $ 0.285   1.63      
$ 0.39 - $ 0.58   200,000   $ 0.560   0.24      
$ 0.59 - $ 0.77   1,470,000   $ 0.633   3.34      
$ 0.78 - $ 0.96   395,000   $ 0.940   0.24      
    37,964,390   $ 0.061   3.45   $ 655,988
Intrinsic value of stock options  

    For the Year Ended July 31,
      2014     2013     2012
Weighted Average Grant Date Fair Value of Options Granted   $ 0.029   $ 0.003   $ 0.09
Aggregate Intrinsic Value of Options Exercised   $ 21,052   $ 178,040   $ 119,214
Cash Received for Exercise of Stock Options   $ 526   $ 5,180   $ 1,299