Warrants (Tables)
 3 Months Ended
Mar. 31, 2018
Warrants  
Schedule of Warrants Exercise Price Range

Following is a summary of warrants outstanding at March 31, 2018:

 

  Number of Warrants     Exercise Price     Expiration Date
  541,362     $ 0.00002     July 2023
  25,000     $ 0.20     April 2022
  312,500     $ 0.20     August 2022
  287,500     $ 0.20     April 2023
  125,000     $ 0.20     May 2023
  81,250     $ 0.20     August 2023
  2,800,000     $ 0.40     May 2022
  187,500     $ 0.20     January 2024