Quarterly report pursuant to Section 13 or 15(d)

3. Equity (Details - Warrants by exercise price)

v3.21.1
3. Equity (Details - Warrants by exercise price) - $ / shares
Mar. 31, 2021
Dec. 31, 2020
Warrants [Member]    
Warrants outstanding 5,130,240 6,861,630
Weighed average exercise price, warrants outstanding $ 4.04 $ 3.24
Weighed average remaining life 3 years 6 months 7 days  
Warrants exercisable 5,130,240  
Weighed average exercise price, warrants exercisable $ 4.04  
Warrant price $11.00 [Member]    
Warrants outstanding 1,206,059  
Weighed average remaining life 1 year 4 months 20 days  
Warrants exercisable 1,206,059  
Warrant price $4.00 [Member]    
Warrants outstanding 148,750  
Weighed average remaining life 3 years 7 months 10 days  
Warrants exercisable 148,750  
Warrant price $2.20 [Member]    
Warrants outstanding 2,723,750  
Weighed average remaining life 4 years 9 months  
Warrants exercisable 2,723,750  
Warrant price $2.00 [Member]    
Warrants outstanding 2,500  
Weighed average remaining life 3 years 2 months 5 days  
Warrants exercisable 2,500  
Warrant price $1.75 [Member]    
Warrants outstanding 100,000  
Weighed average remaining life 3 years 18 days  
Warrants exercisable 100,000  
Warrant price $1.50 [Member]    
Warrants outstanding 14,000  
Weighed average remaining life 2 years 2 months 12 days  
Warrants exercisable 14,000  
Warrant price $0.70 [Member]    
Warrants outstanding 935,181  
Weighed average remaining life 2 years 9 months  
Warrants exercisable 935,181