Quarterly report pursuant to Section 13 or 15(d)

5. STOCK OPTIONS AND WARRANTS (Details - Option Assumptions)

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5. STOCK OPTIONS AND WARRANTS (Details - Option Assumptions)
9 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Share-based Payment Arrangement [Abstract]    
Risk-free interest rate 1.80% 0.00%
Expected volatility 91.00% 0.00%
Expected lives (years) 2 years 8 months 12 days  
Expected dividend yield 0.00% 0.00%