Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Schedule of Warrants) (Details)

v3.6.0.2
Stockholders' Equity (Schedule of Warrants) (Details) - Warrant [Member]
6 Months Ended
Oct. 31, 2016
USD ($)
$ / shares
shares
Number of Shares  
Balance Outstanding | shares 23,916,270
Granted | shares 750,000
Exercised | shares
Forfeited | shares (13,451,611)
Expired | shares
Balance Outstanding | shares 11,214,659
Exercisable | shares 11,214,659
Weighted Average Exercise Price  
Balance Outstanding | $ / shares $ 0.19
Granted | $ / shares 0.20
Exercised | $ / shares
Forfeited | $ / shares 0.16
Expired | $ / shares
Balance Outstanding | $ / shares 0.24
Exercisable | $ / shares $ 0.24
Weighted Average Remaining Contractual Term  
Balance Outstanding, October 31, 2016 2 years
Exercisable 2 years
Aggregate Intrinsic Value  
Balance Outstanding | $ $ 616,335
Granted | $ 37,500
Balance Outstanding | $ 653,835
Exercisable | $ $ 653,835