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Stock-based Compensation (Tables)
12 Months Ended
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Consolidated Stock-based Compensation Expense, by Type of Awards

The following table summarizes the consolidated stock-based compensation expense, by type of awards for the years ended December 31:

 

     For the Years Ended  
     December 31,
2015
     December 31,
2014
 

Employee stock options

   $ 6,350       $ 332   

Restricted stock grants

     31,843         24   
  

 

 

    

 

 

 

Total stock-based compensation expense

   $ 38,193       $ 356   
  

 

 

    

 

 

 
Summary of Consolidated Stock-based Compensation by Line Item

The following table summarizes the consolidated stock-based compensation by line items for the years ended December 31:

 

     For the Years Ended  
     December 31,
2015
     December 31,
2014
 

General and administrative

   $ 37,810       $ 326   

Sales, marketing and customer service

     383         30   
  

 

 

    

 

 

 

Total stock-based compensation expense

     38,193         356   
  

 

 

    

 

 

 

Tax effect on stock-based compensation expense

     —           —    
  

 

 

    

 

 

 

Total stock-based compensation expense after income taxes

   $ 38,193       $ 356   
  

 

 

    

 

 

 
Assumptions used to Estimate Fair Value of Share-based Payment Awards

Assumptions used in the determination of the fair value of share-based payment awards using the Black-Scholes model for stock option grants during the years ended December 31 were as follows:

 

     For the Years Ended
     December 31, 2015    December 31, 2014

Expected term

   4    4

Risk-free interest rate

   1.49% - 1.72%    1.39% - 1.85%

Expected volatility

   139% - 141%    141% - 144%

Expected dividend yield

   0%    0%
Summary of Stock Option Activity

The following table summarizes the Group’s stock option activities:

 

     Shares      Weighted-
Average
Exercise
Price Per
Share
     Weighted-
Average
Remaining
Contractual
Term
     Aggregate
Intrinsic
Value
($000)
 

Outstanding as of January 1, 2014

     7,114,250         0.20         

Granted

     24,345,000         0.88         

Exercised

     (895,000      0.22         

Forfeited

     (5,135,250      0.25         
  

 

 

    

 

 

       

Outstanding as of December 31, 2014

     25,429,000         0.84         5.65       $ 30,302   

Granted

     46,521,000         1.81         

Exercised

     (78,750      0.37         

Forfeited

     (8,322,500      1.64         
  

 

 

    

 

 

       

Outstanding as of December 31, 2015

     63,548,750         1.45         7.85         87,401   
  

 

 

          

Vested and exercisable as of December 31, 2015

     7,583,000         0.78         4.49         7,472   

Expected to vest as of December 31, 2015

     50,175,237         1.41         7.73         70,565   
  

 

 

          
Summary of Exercise Price and Remaining Life Information about Options Exercisable

The following table presents the exercise price and remaining life information about options exercisable at December 31, 2015:

 

Range of exercise price

   Shares
Exercisable
     Weighted
average
remaining
contractual
life
     Weighted
average
exercise
price
     Aggregate
Intrinsic
($000)
 

$1.18 - $2.65

     2,230,000         8.40         1.83         350   

$0.40 - $1.17

     2,143,750         2.46         0.53         2,465   

$0.05 - $0.39

     3,209,250         3.14         0.23         4,657   
  

 

 

          

 

 

 
     7,583,000               7,472   
  

 

 

          

 

 

 
Schedule of Changes in Nonvested Stock Awards

Changes in the Group’s non-vested stock awards are summarized as follows:

 

     Time-based Options      Restricted Stock  
     Shares      Weighted
Average
Exercise
Price
Per Share
     Shares      Weighted
Average
Grant Date
Fair Value
Per Share
 

Non-vested as of January 1, 2014

     5,678,750       $ 0.13         —         $ —    

Granted

     24,345,000         0.88         525,000         0.75   

Vested

     (1,708,500      0.24         (500,000 )      0.75   

Forfeited

     (4,378,250      0.24         —          —    
  

 

 

       

 

 

    

Non-vested as of December 31, 2014

     23,937,000       $ 0.84         25,000       $ 0.75   

Granted

     46,521,000         1.81         20,468,400         1.66   

Vested

     (6,169,750      0.78         (20,065,800      1.68   

Forfeited

     (8,322,500      1.64         —           —     
  

 

 

       

 

 

    

Non-vested as of December 31, 2015

     55,965,750         1.28         427,600         1.79   
  

 

 

          
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

Following is a summary of our restricted stock awards as of December 31, 2015 and 2014 and changes during the years then ended:

 

     Number
of Shares
     Weighted
Average
Grant-Date
Fair Value
 

Restricted stock units at January 1, 2014

     1,325,868       $ 0.63   

Granted

     525,000         0.75   

Forfeited

     —          —    
  

 

 

    

Restricted stock units at December 31, 2014

     1,850,868         0.66   

Granted

     20,468,400         1.59   

Forfeited

     (488,400      1.75  
  

 

 

    

Restricted stock units at December 31, 2015

     21,830,868         1.51