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Equity (Tables)
6 Months Ended
Jun. 30, 2014
Stock Options [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of option activities

 

     Weighted  
      Average  
    Weighted Remaining 
  Number Average Contractual Aggregate
  

of

Units

 Exercise 
Price
 Term (in years) 

Intrinsic

Value

Outstanding, December 31, 2013  1,985,384  $3.23   8.34  $5,908,696 
Issued  979,100   9.85   10.00     
Exercised  (11,655)  0.78   -     -   
Outstanding, June 30, 2014  2,952,829  $5.45   8.35  $8,300,565 
Exercisable, June 30, 2014  868,287  $0.98   5.99  $5,418,017 
 
Warrants [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of option activities
      Weighted  
      Average  
    Weighted Remaining Aggregate
  Number of Average Contractual Intrinsic
  Units Exercise Price Term (in years) Value
         
Outstanding, December 31, 2013  9,673,290   1.06   4.89   47,396,307 
Granted  406,928   7.96   7.46     
Exercised  (662,160)  1.44         
Outstanding, June 30, 2014  9,418,058  $1.33   4.54  $56,362,310 
Exercisable, June 30, 2014  9,195,074  $1.16   4.42  $56,183,393