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Quarterly report pursuant to sections 13 or 15(d)

Stockholders' Equity (Schedule of Warrants) (Details)

v2.4.0.8
Stockholders' Equity (Schedule of Warrants) (Details) (Warrant [Member], USD $)
9 Months Ended
Jan. 31, 2014
Warrant [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning Balance 9,090,292
Issued 14,378,183
Exercised (4,231,840)
Forfeited (40,000)
Expired   
Ending Balance 19,196,635
Weighted average exercise price, beginning $ 0.40
Weighted average exercise price, issued $ 0.29
Weighted average exercise price, exercised $ 0.19
Weighted average exercise price, forfeited $ 0.50
Weighted average exercise price, expired   
Weighted average exercise price, ending $ 0.33
Weighted Average Remaining Contractual Term, Outstanding 4 years 6 months
Aggregate Intrinsic Value, Outstanding $ 1,003,192
Exercisable 19,196,635
Weighted Average Exercise Price, Exercisable $ 0.33
Weighted Average Remaining Contractual Term, Exercisable 4 years 6 months
Aggregate Intrinsic Value, Exercisable $ 1,003,192