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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
  2017 2016
     
Expected dividend yield 0% 0%
Risk free interest rate 1.47% - 1.81% 0.86%-1.15%
Expected option term 3.5 – 5 years 4.5 years
Turnover/forfeiture rate 0% 0%
Expected volatility 65%-78% 91% - 99%
Summary of options and warrants outstanding
  2017  2016 
       
Options  4,106,250   3,120,000 
Warrants  1,044,583   2,044,583 
Weighted average exercise price $1.06  $1.34