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NOTE 8 - WARRANTS (Details)
9 Months Ended
Jan. 31, 2020
$ / shares
shares
Share-based Payment Arrangement [Abstract]  
Warrants outstanding, beginning | shares 30,654,249
Warrants expired | shares (1,614,400)
Warrants outstanding, ending | shares 29,039,849
Weighted average exercise price, beginning | $ / shares $ .16
Weighted average exercise price expired | $ / shares (.23)
Weighted average exercise price, ending | $ / shares $ .16