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WARRANTS (Tables)
12 Months Ended
Dec. 31, 2016
WARRANTS  
Schedule of assumptions used to estimate the fair value of the Warrants

                                                                                                                                                                                    

 

 

At October 26,
2015

 

At December 11,
2015

 

At December 31,
2016

Exercise price

 

$

24.48

 

$

28.08

 

$24.48 ~ $28.08

Risk-free interest rate

 

 

0.672

%

 

0.935

%

0.850% ~ 0.875%

Dividend yield

 

 

 

 

 

Time to maturity

 

 

2

 

 

2

 

0.82 ~ 0.94

Expected volatility

 

 

67.24

%

 

65.13

%

53.99% ~ 59.21%

 

Schedule of reconciliation of the beginning and ending balances of the Warrants measured at fair value on a recurring basis using Level 2 inputs

                                                                                                                                                                                    

Derivative Liabilities

 

At December 31,
2016

 

 

 

$

 

Beginning balance

 

 

25,265

 

Warrants issued

 

 

 

Fair value change of the Warrants included in earnings

 

 

(24,554

)

​  

​  

Ending balance

 

 

711

 

​  

​  

​  

​