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Equity (Tables)
3 Months Ended
Mar. 31, 2019
Warrant [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of option and warrant activities
   Number of Shares   Weighted
Average
Exercise
Price
   Weighted
Average
Remaining
Contractual
Term
(in years)
   Aggregate
Intrinsic
Value
 
Outstanding, December 31, 2018   55,820,876   $1.20    2.04   $569,038 
Granted   -                
Exercised   (2,506,271)   0.60           
Cancelled   (9,841,337)   2.80           
Outstanding, March 31, 2019   43,473,269    0.88    2.33    719,300 
                     
Exercisable, March 31, 2019   43,272,019    0.86    2.32    709,550