Quarterly report pursuant to Section 13 or 15(d)

8. Stock options and Warrants (Details Narrative)

v3.8.0.1
8. Stock options and Warrants (Details Narrative) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Valuation assumptions    
Proceeds from exercise of warrants $ 71,000 $ 0
Options [Member]    
Weighted average remaining contractual life 5 years 7 months 6 days  
Options granted, shares 2,083,335  
Option exercisable price $ 0.18  
Valuation assumptions    
Options vested, share based compensation expense $ 143,000 $ 231,000
Stock price $ 0.13  
Aggregate intrinsic value of options outstanding $ 598,000  
Future unamortized compensation expense on unvested outstanding options $ 311,000  
Options [Member] | Board of Directors [Member]    
Options granted, shares 2,083,335  
Fair value of options at grant date $ 313,000  
Valuation assumptions    
Expected life 5 years  
Risk free interest rate 1.70%  
Volatility 118.00%  
Expected dividend yield 0.00%  
Warrants [Member]    
Valuation assumptions    
Warrants granted 1,684,375  
Warrant exercise price $ 0.08  
Aggregate intrinsic value of warrants outstanding $ 1,108,000  
Stock issued for exercise of warrants, shares 1,345,710  
Proceeds from exercise of warrants $ 71,000