Quarterly report pursuant to Section 13 or 15(d)

12. EARNINGS PER SHARE (Details - per share calculation)

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12. EARNINGS PER SHARE (Details - per share calculation) - USD ($)
3 Months Ended 9 Months Ended
Jan. 31, 2018
Jan. 31, 2017
Jan. 31, 2018
Jan. 31, 2017
Earnings Per Share [Abstract]        
Net loss $ (2,030,660) $ (1,282,146) $ (5,533,373) $ (3,288,663)
Basic weighted average number of shares outstanding 975,848,246 859,529,933 958,198,483 832,203,911
Diluted weighted average number of shares outstanding 975,848,246 859,529,933 958,198,483 832,203,911
Basic and diluted loss per share $ (0.00) $ (0.00) $ (0.01) $ (0.00)