Quarterly report pursuant to Section 13 or 15(d)

8. Stock options and Warrants (Details Narrative)

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8. Stock options and Warrants (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share based compensation expense     $ 275,000 $ 340,000
Proceeds from warrant exercises     292,000 647,000
Warrants [Member]        
Aggregate intrinsic value of warrants outstanding $ 1,060,000   $ 1,060,000  
Warrants granted     10,922,062  
Warrants exercised     3,501,493  
Proceeds from warrant exercises     $ 221,000  
Warrants [Member] | Consulting Agreement [Member]        
Warrants granted     99,999  
Fair value of warrants granted     $ 17,000  
Warrants [Member] | Convertible Notes [Member]        
Warrants granted     10,823,062  
Options [Member]        
Options granted     4,687,500  
Option exercise price     $ 0.08  
Share based compensation expense 82,000 $ 95,000 $ 265,000 $ 340,000
Aggregate intrinsic value of options outstanding 453,000   453,000  
Unamortized compensation expense $ 82,000   $ 82,000  
Weighted average life of options     3 months  
Options [Member] | Board of Directors [Member]        
Options granted     4,687,500  
Option exercise price     $ 0.08  
Fair value of options at grant date     $ 328,000