Annual report pursuant to Section 13 and 15(d)

10. STOCK-BASED COMPENSATION (Details - Assumptions)

v3.8.0.1
10. STOCK-BASED COMPENSATION (Details - Assumptions) - $ / shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Employees [Member]    
Volatility 102.58% 87.63%
Risk-free interest rate 1.62% 1.47%
Expected term 3 years 2 months 2 days 5 years 8 months 4 days
Dividend rate 0.00% 0.00%
Fair value per share on grant date $ 0.13 $ 0.27
Non-Employees [Member]    
Volatility 95.94% 90.38%
Risk-free interest rate 2.59% 1.37%
Expected term 10 years 10 years
Dividend rate 0.00% 0.00%
Fair value per share on grant date $ 0.33 $ 0.32
Options Outside the Amended 2013 Plan [Member] | Employees [Member]    
Volatility 81.10%  
Risk-free interest rate 1.84%  
Expected term 4 years 7 months 17 days  
Dividend rate 0.00%  
Fair value per share on grant date $ 0.15