Quarterly report pursuant to Section 13 or 15(d)

9. STOCK-BASED COMPENSATION (Details - Option activity)

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9. STOCK-BASED COMPENSATION (Details - Option activity) - Options [Member] - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Share-based compensation activity    
Options outstanding, beginning balance 15,823,277  
Options outstanding, granted 6,669,000  
Options outstanding, exercised (283,334)  
Options outstanding, forfeited (550,000)  
Options outstanding, expired (5,277)  
Options outstanding, ending balance 21,653,666 15,823,277
Options outstanding, exercisable 15,838,205  
Options outstanding, unvested 5,815,461  
Options outstanding, vested or expected to vest 21,653,666  
Weighted average exercise price, beginning balance $ 0.48  
Weighted average exercise price, granted 0.40  
Weighted average exercise price, exercised 0.38  
Weighted average exercise price, forfeited 0.40  
Weighted average exercise price, expired 0.45  
Weighted average exercise price, ending balance 0.46 $ 0.48
Weighted average exercise price, exercisable 0.48  
Weighted average exercise price, unvested 0.38  
Weighted average exercise price, vested or expected to vest $ 0.46  
Weighted average remaining contract term 8 years 11 days 8 years 6 months 14 days
Weighted average remaining contract term, exercisable 7 years 7 months 6 days  
Weighted average remaining contract term, unvested 9 years 2 months 19 days  
Weighted average remaining contract term, vested or expected to vest 8 years 11 days  
Aggregate intrinsic value $ 26,390,910 $ 5,406,499
Aggregate intrinsic value, exercisable 18,944,543  
Aggregate intrinsic value, unvested 7,446,367  
Aggregate intrinsic value, vested or expected to vest $ 26,390,910