Quarterly report pursuant to Section 13 or 15(d)

3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 9 Months Ended
Jan. 31, 2016
Accounting Policies [Abstract]  
Shares excluded from fully diluted earnings calculation
    Three Months Ended January 31,     Nine Months Ended January 31,  
    2016     2015     2016     2015  
Excluded options     68,050,000       25,000,000       68,050,000       25,000,000  
Excluded warrants     84,969,908       57,969,908       84,969,908       57,969,908  
Total excluded options and warrants     153,021,924       82,971,923       153,021,924       82,971,923