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Employee Stock Options (Tables) - Employee Stock Option [Member]
12 Months Ended
Dec. 31, 2018
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Schedule of assumptions used to estimate fair value stock options granted
  2018     2017  
Expected dividend yield     0 %     0 %
Expected volatility     80-96 %     82-101 %
Risk-free interest rate     2.41-2.93 %     1.50-2.62 %
Expected life of options     4.0 years       2.5-4.0 years  
Schedule of stock option activity
   Number of Options   Weighted
Average
Exercise Price per Share
   Weighted
Average
Contractual
Life in
Years
   Aggregate Intrinsic
Value
 
Outstanding – December 31, 2016   442,500   $5.81    1.72                       
Exercisable – December 31, 2016   407,500   $5.57    1.65   $0 
Granted   7,510,000   $1.12           
Cancelled or Expired   (7,500)  $4.18           
Outstanding – December 31, 2017   7,945,000   $1.38    3.50      
Exercisable – December 31, 2017   7,627,500   $1.35    3.50   $0 
Granted   11,560,000   $0.82           
Cancelled or Expired   (5,515,000)  $1.37           
Outstanding – December 31, 2018   13,990,000   $0.61    3.15   $ 
Exercisable – December 31, 2018   13,610,000   $0.59    3.16   $0