Quarterly report pursuant to Section 13 or 15(d)

16. Stock Options (Details-Option activity)

v3.21.1
16. Stock Options (Details-Option activity) - Stock Options [Member] - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Stock Options    
Number of Options outstanding beginning balance 9,116,176  
Number of Options Granted 660,000  
Number of Options Exercised 0  
Number of Options Cancelled 45,000  
Number of Options Expired 0  
Number of Options outstanding ending balance 9,731,176 9,116,176
Number of Options exercisable 6,434,452 6,449,452
Exercise Price Per Share    
Exercise price per share, range 1.39 - 10.00  
Exercise price per share, options granted 3.06  
Exercise price per share, options cancelled 2.61  
Exercise prices at period end 1.39 - 10.00  
Exercise price per share, exercisable 1.39 - 3.17 1.39 - 9.00
Weighted Average Remaining Contractual Life 8 years 10 months 10 days 9 years 4 months 13 days
Weighted average remaining contractual life, options granted 4 years 9 months 29 days  
Weighted average remaining contractual life, options cancelled 4 years 2 months 27 days  
Weighted average remaining contractual life, exercisable 9 years 5 months 5 days 6 years 2 months 30 days
Weighted Average Exercise Price per Share beginning balance $ 1.69  
Weighted Average Exercise Price Options Granted 3.06  
Weighted Average Exercise Price Options Cancelled 2.61  
Weighted Average Exercise Price Options Expired  
Weighted Average Exercise Price per Share ending balance 1.78 $ 1.69
Weighted Average Exercise Price per Share Exercisable $ 1.44 $ 7.67
Aggregate intrinsic value, options outstanding $ 0 $ 0
Aggregate intrinsic value, exercisable $ 0 $ 0