Annual report pursuant to Section 13 and 15(d)

5. STOCK OPTIONS AND WARRANTS (Details - Warrants by exercise price)

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5. STOCK OPTIONS AND WARRANTS (Details - Warrants by exercise price)
12 Months Ended
Apr. 30, 2018
$ / shares
shares
Number of Warrants exercisable 33,993,104
$0.025, $0.03, $0.0575 $0.065, $0.11 and $0.12 [Member]  
Number of Warrants exercisable 33,993,104
Weighted average remaining contractual term 2 years 7 months 6 days
Weighted average exercise price exercisable | $ / shares $ 0.11
Five Year Term $0.12 [Member]  
Number of Warrants exercisable 17,854,308
Weighted average remaining contractual term 2 years 7 months 17 days
Five Year Term $0.11 [Member]  
Number of Warrants exercisable 10,000,000
Weighted average remaining contractual term 1 year 10 months 25 days
Five Year Term $0.065 [Member]  
Number of Warrants exercisable 769,231
Weighted average remaining contractual term 3 years 7 months 21 days
Five Year Term $0.0575 [Member]  
Number of Warrants exercisable 869,565
Weighted average remaining contractual term 3 years 11 months 4 days
Five Year Term $0.03 [Member]  
Number of Warrants exercisable 2,500,000
Weighted average remaining contractual term 4 years 6 months 29 days
Five Year Term $0.025 [Member]  
Number of Warrants exercisable 2,000,000
Weighted average remaining contractual term 4 years 2 months 27 days