Annual report pursuant to Section 13 and 15(d)

12. Share-Based Compensation (Details - Non-employee option activity)

v3.20.4
12. Share-Based Compensation (Details - Non-employee option activity) - Non Employee Stock Options [Member] - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Options outstanding, beginning balance 20,560 5,302  
Options granted 0 15,500  
Options expired (242) (242)  
Options outstanding, ending balance 20,318 20,560 5,302
Options vested or expected to vest 20,318    
Options exercisable 20,318 5,060  
Weighted-average exercise price outstanding, beginning balance $ 17.09 $ 73.52  
Weighted-average exercise price, granted 0 1.08  
Weighted-average exercise price, forfeited/expired 225.72 225.72  
Weighted-average exercise price, ending balance 14.61 17.09 $ 73.52
Weighted-average exercise price, vested or expected to vest 14.61    
Weighted-average exercise price, exercisable $ 14.61 $ 66.15  
Weighted-average remaining life outstanding 3 years 9 months 14 days 4 years 8 months 26 days 5 years 4 months 24 days
Weighted-average remaining life, vested or expected to vest 3 years 9 months 14 days    
Weighted-average remaining life, exercisable 3 years 9 months 14 days 4 years 7 months 17 days  
Aggregate intrinsic value, outstanding beginning balance $ 0 $ 0  
Aggregate intrinsic value, outstanding ending balance 14,880 0 $ 0
Aggregate intrinsic value, vested or expected to vest 14,880    
Aggregate intrinsic value, exercisable $ 14,880 $ 0