Registration of securities issued in business combination transactions

10. Share-Based Compensation (Details - Assumptions Employee)

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10. Share-Based Compensation (Details - Assumptions Employee) - Employee Stock Options [Member] - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Weighted-average expected dividend yield 0.00% 0.00%
Weighted-average expected volatility 118.03% 111.37%
Weighted-average risk-free interest rate 2.90% 1.79%
Weighted-average expected life of option 5 years 10 months 25 days 5 years 4 months 9 days
Weighted-average exercise price $ 3.05 $ 3.34