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Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Deficiency) (Schedule of Stock Options Activity) (Details)

v2.4.0.8
Stockholders' Equity (Deficiency) (Schedule of Stock Options Activity) (Details) (USD $)
12 Months Ended
Apr. 30, 2014
Stock Incentive Plan and Stock Option Grants to Employees and Directors [Member]
 
Number of Shares  
Balance Outstanding, April 30, 2013 7,344,381
Granted 3,778,711
Exercised   
Forfeited (646,680)
Expired   
Balance Outstanding, April 30, 2014 10,476,412
Exercisable, April 30, 2014 2,050,332
Weighted Average Exercise Price  
Balance Outstanding, April 30, 2013 $ 0.35
Weighted average exercise price of options granted $ 0.25
Exercised   
Forfeited $ 0.35
Expired   
Balance Outstanding, April 30, 2014 $ 0.35
Exercisable, April 30, 2014 $ 0.35
Weighted Average Remaining Contractual Term  
Balance Outstanding, April 30, 2014 4 years
Exercisable, April 30, 2014 3 years 9 months 18 days
Aggregate Intrinsic Value  
Balance Outstanding, April 30, 2014   
Exercisable, April 30, 2014   
Stock Option Grants to Non-Employees [Member]
 
Number of Shares  
Balance Outstanding, April 30, 2013 270,000
Granted   
Exercised   
Forfeited   
Expired   
Balance Outstanding, April 30, 2014 270,000
Exercisable, April 30, 2014   
Weighted Average Exercise Price  
Balance Outstanding, April 30, 2013 $ 0.35
Weighted average exercise price of options granted   
Exercised   
Forfeited   
Expired   
Balance Outstanding, April 30, 2014 $ 0.35
Weighted Average Remaining Contractual Term  
Balance Outstanding, April 30, 2014 4 years
Aggregate Intrinsic Value  
Balance Outstanding, April 30, 2014