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4. STOCKHOLDERS' EQUITY (Details - Assumptions)
12 Months Ended
Jun. 30, 2020
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]  
Option life 5 years 3 months 19 days
Risk-free interest rate 3.00%
Stock volatility 131.00%
Dividend yield | $ $ 0
Weighted average fair value of grants | $ / shares $ 1.31