Annual report pursuant to Section 13 and 15(d)

8. Stock options and Warrants (Details Narrative)

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8. Stock options and Warrants (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share based compensation expense $ 383,000 $ 435,000
Warrants [Member]    
Aggregate intrinsic value of warrants outstanding $ 961,000  
Warrants vested 13,031,751  
Warrants expected to vest 33,333  
Warrants granted 11,180,084 18,238,688
Warrants exercised 10,629,493 12,517,773
Proceeds from warrant exercises $ 221,000  
Warrants [Member] | Consulting Agreement [Member]    
Warrants granted 266,664  
Fair value of warrants granted $ 27,000  
Expected life 2 years  
Risk free interest rate - minimum 1.56%  
Risk free interest rate - maximum 1.63%  
Volatility - minimum 148.00%  
Volatility - maximum 163.00%  
Expected dividend yield 0.00%  
Warrants [Member] | Convertible Notes [Member]    
Warrants granted 10,912,420 18,238,688
Options [Member]    
Options granted 4,687,500 2,083,335
Option exercise price $ 0.08 $ 0.18
Aggregate intrinsic value of options outstanding $ 1,234,000  
Unamortized compensation expense $ 22,000  
Weighted average life of options 4 years 8 months 12 days  
Expected life 5 years 5 years 5 months
Expected dividend yield 0.00% 0.00%
Options [Member] | Employees, Officers and Board of Directors [Member]    
Options granted 4,687,500 2,083,335
Fair value of options at grant date $ 359,000 $ 313,000
Share based compensation expense $ 359,000 $ 435,000