Annual report pursuant to Section 13 and 15(d)

STOCK OPTIONS AND WARRANTS (Details - Option Assumptions)

v3.22.2
STOCK OPTIONS AND WARRANTS (Details - Option Assumptions) - Employee Options [Member]
12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Risk-free interest rate 1.10% 0.40%
Expected volatility 129.00% 97.00%
Expected lives (years) 2 years 8 months 12 days 2 years 8 months 12 days
Expected dividend yield 0.00% 0.00%