Annual report pursuant to Section 13 and 15(d)

11. Share-Based Compensation (Details - Employee option activity)

v3.20.1
11. Share-Based Compensation (Details - Employee option activity) - Employee Stock Options [Member] - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Options outstanding, beginning balance 147,472 148,381
Options granted 525,000 8,336
Options expired (10,413) (9,245)
Options outstanding, ending balance 662,059 147,472
Options vested or expected to vest 662,059  
Options exercisable 123,864 96,031
Weighted-average exercise price outstanding, beginning balance $ 45.95 $ 47.90
Weighted-average exercise price, granted 1.31 36.60
Weighted-average exercise price, expired 25.32 68.76
Weighted-average exercise price, ending balance 10.88 45.95
Weighted-average exercise price, vested or expected to vest 10.88  
Weighted-average exercise price, exercisable $ 47.69 $ 49.34
Weighted-average remaining life outstanding 9 years 4 months 2 days 8 years 2 months 1 day
Weighted-average remaining life, vested or expected to vest 9 years 4 months 2 days  
Weighted-average remaining life, exercisable 7 years 1 month 6 days 7 years 11 months 1 day
Aggregate intrinsic value, outstanding beginning balance $ 0 $ 5,273
Aggregate intrinsic value, outstanding ending balance 66,125 0
Aggregate intrinsic value, vested or expected to vest 66,125  
Aggregate intrinsic value, exercisable $ 0 $ 0