Annual report pursuant to Section 13 and 15(d)

14. Stock Options (Details-Option activity)

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14. Stock Options (Details-Option activity) - Stock Options [Member] - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Stock Options      
Number of Options outstanding beginning balance 1,289,866 1,259,415  
Number of Options Granted 8,880,000 81,000  
Number of Options Exercised 0 0  
Number of Options Cancelled 2,000 50,549  
Number of Options Expired 1,051,690 0  
Number of Options outstanding ending balance 9,116,176 1,289,866 1,259,415
Number of Options exercisable 6,449,452 1,176,416  
Exercise Price Per Share      
Exercise price per share, range 1.99 - 12.00 2.09 - 12.00  
Exercise price per share, options granted 1.39 - 10.00 1.99  
Exercise price per share, options cancelled 1.99 1.99 - 2.70  
Exercise price per share, Expired 2.70 - 2.82    
Exercise prices at period end 1.39 - 10.00 1.99 - 12.00  
Exercise price per share, exercisable 1.39 - 3.17 1.99 - 9.00  
Weighted Average Remaining Contractual Life 4 years 10 months 3 days 6 years 5 months 27 days 2 years 6 months
Weighted average remaining contractual life, options granted 4 years 10 months 28 days 3 years  
Weighted average remaining contractual life, options cancelled 3 years 2 months 5 days 4 years 6 months 3 days  
Weighted average remaining contractual life, exercisable 4 years 10 months 14 days 6 years 2 months 30 days  
Weighted Average Exercise Price per Share beginning balance $ 7.18 $ 7.39  
Weighted Average Exercise Price Options Granted 1.66 1.99  
Weighted Average Exercise Price Options Cancelled 1.99 6.34  
Weighted Average Exercise Price Options Expired 2.71  
Weighted Average Exercise Price per Share ending balance 1.69 7.18 $ 7.39
Weighted Average Exercise Price per Share Exercisable $ 1.44 $ 7.67