Quarterly report pursuant to Section 13 or 15(d)

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

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10. EARNINGS PER SHARE (Details - per share calculation) - USD ($)
3 Months Ended 6 Months Ended
Oct. 31, 2018
Jul. 31, 2018
Oct. 31, 2017
Jul. 31, 2017
Oct. 31, 2018
Oct. 31, 2017
Earnings Per Share [Abstract]            
Net loss $ (1,036,574) $ (1,215,363) $ (1,814,298) $ (1,688,415) $ (2,251,937) $ (3,502,713)
Basic weighted average number of shares outstanding 1,080,708,112   973,167,811   1,063,602,271 949,373,602
Diluted weighted average number of shares outstanding 1,080,708,112   973,167,811   1,063,602,271 949,373,602
Basic and diluted loss per share $ (0.00)   $ (0.00)   $ (0.00) $ (0.00)