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14. STOCK OPTIONS AND WARRANTS (Tables)
12 Months Ended
Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Assumptions for options granted
  2016 2015
Expected volatility 103.59% -114.93% 169.62%
Expected remaining term 2.5-6.5 Years 7 Years
Risk-free interest rate 0.16% -0.50% 0.66%
Expected dividend yield None None
Rollforward of option activity
   Number of
Options
  

Weighted

Average

Exercise

Price

 
Outstanding at December 31, 2014   15,387,007   $0.28 
Granted   150,000    0.13 
Exercised        
Forfeited   200,000    0.22 
Expired        
Outstanding at December 31, 2015   15,337,007   $0.28 
Granted   5,380,000    0.15 
Exercised        
Forfeited   800,000    0.19 
Expired        
Outstanding at December 31, 2016   19,917,007   $0.25 
Exercisable at December 31, 2016   16,555,133   $0.28 
Weighted average grant date fair value       $0.12 
Stock options information by exercise price

  Options Outstanding   Options Exercisable 
Range of
Exercise Price
  Number
Outstanding at
December 31, 2016
   Weighted
Average
Remaining
Contractual
Life
  Weighted
Average
Exercise
Price
   Aggregate
Intrinsic
Value
   Number
Exercisable
at
December 31, 2016
   Weighted
Average
Exercise
Price
   Aggregate
Intrinsic
Value
 
$0.13-1.31   19,917,007   5.16 Years  $0.25   $    16,555,133   $0.28   $ 
    19,917,007   5.16 Years  $0.25   $    16,555,133   $0.28   $ 
Warrant activity
   Number of
Warrants
  

Weighted

Average

Exercise

Price

 
Outstanding at December 31, 2014   29,219,441   $0.18 
Granted       0.16 
Exercised        
Forfeited        
Expired        
Outstanding at December 31, 2015   29,219,441   $0.18 
Granted   291,667   $0.15 
Exercised        
Forfeited        
Expired   1,314,286    0.33 
Outstanding at December 31, 2016   28,196,822   $0.17 
Exercisable at December 31, 2016   28,196,822   $0.17 
Weighted average grant date fair value       $0.10