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Significant Accounting Policies (Tables)
12 Months Ended
Apr. 30, 2016
Accounting Policies [Abstract]  
Dilutive Effect of Outstading Securities
  April 30, 2016   April 30, 2015
Stock options   3,083,667     3,058,667
Warrants   5,855,400     1,614,400
  TOTAL POSSIBLE DILUTION   8,939,067     4,673,067