ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)
 12 Months Ended
Dec. 31, 2014
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES [Abstract]  
Schedule of accrued expenses and other current liabilities
As of December 31  
2013     2014  
Accrued salaries and welfare expenses 3,281       3,688  
Accrued professional fees 1,430       1,087  
Payables to intellectual property suppliers     170       -  
Payables to other suppliers     533       14,994  
Payables to employees     76       6  
Other accrued expenses     1,142       723  
      6,632       20,498