SHARE-BASED PAYMENT (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 0 Months Ended 12 Months Ended
Aug. 27, 2013
Dec. 01, 2012
May 01, 2012
Dec. 28, 2011
Aug. 18, 2008
Dec. 31, 2013
item
Dec. 31, 2012
Dec. 31, 2011
SHARE-BASED PAYMENT                
Ordinary shares authorized to be purchased         12,000,000      
Share-based compensation cost recognized           $ 211 $ 166 $ 10,479
Number of Options                
Exercised (in shares)           (110,568)    
Maximum
                
SHARE-BASED PAYMENT                
Period for approval of the Plan by shareholders from the date on which the Plan is adopted by the Board         12 months      
Share options
                
SHARE-BASED PAYMENT                
Contractual life     5 years          
Share options vest and become exercisable on the first anniversary of the grant date (as a percent)     50.00%          
Share options vest and become exercisable on the second and third anniversary of the grant date (as a percent)     25.00%          
Exercise period under settlement agreement, maximum, from December 15, 2012             90 days  
Incremental compensation cost on modification       0        
Share-based compensation cost recognized       7,620        
Weighted-Average Exercise Price                
Granted (in dollars per share)     $ 0.62          
Aggregate Intrinsic Value                
Total intrinsic value of options exercised           62 0 0
Share options | Directors
                
Number of Options                
Granted (in shares)         40,000      
Expired (in shares)           (40,000)    
Share options | Consultants
                
SHARE-BASED PAYMENT                
Contractual life       5 years        
Expiration period of options after termination of service       30 days        
Number of Options                
Granted (in shares)     50,000 9,250 9,250      
Exercised (in shares)           (9,250)    
Forfeited or cancelled (in shares)       (275,000)        
Expired (in shares)           (50,000)    
Weighted-Average Exercise Price                
Granted (in dollars per share)       $ 0.46        
Share options | Employees
                
SHARE-BASED PAYMENT                
Contractual life 5 years 5 years   5 years        
Expiration period of options after termination of service       30 days        
Share options vest and become exercisable on May 31, 2013 (as a percent)   25.00%            
Share options vest and become exercisable on the first, second and third anniversary of the grant date (as a percent)   25.00%            
Share options vest and become exercisable on the first, second and third anniversary of the contractual date (as a percent) 33.30%              
Number of Options                
Outstanding at the beginning of the period (in shares)           3,635,250    
Granted (in shares) 900,000 600,000 9,929,998 407,706   1,300,000    
Exercised (in shares)           (265,547)    
Forfeited or cancelled (in shares)       (10,109,000)   (630,139)    
Expired (in shares)         (50,000)      
Outstanding at the end of the period (in shares)           4,039,564 3,635,250  
Vested and expected to vest (in shares)           3,527,057    
Exercisable (in shares)           1,498,674    
Weighted-Average Exercise Price                
Outstanding at the beginning of the period (in dollars per share)           $ 0.62    
Granted (in dollars per share) $ 0.8474 $ 0.72   $ 0.46   $ 0.89    
Exercised (in dollars per share)           $ 0.49    
Forfeited or cancelled (in dollars per share)           $ 0.70    
Outstanding at the end of the period (in dollars per share)           $ 0.70 $ 0.62  
Vested and expected to vest (in dollars per share)           $ 0.71    
Exercisable (in dollars per share)           $ 0.62    
Weighted-Average Remaining Contractual Life                
Outstanding at the beginning of the period           3 years 8 months 19 days 4 years 2 months 1 day  
Outstanding at the end of the period           3 years 8 months 19 days 4 years 2 months 1 day  
Vested and expected to vest           3 years 8 months 19 days    
Exercisable           3 years 4 months 13 days    
Aggregate Intrinsic Value                
Outstanding at the beginning of the period           38    
Outstanding at the end of the period           787 38  
Vested and expected to vest           675    
Exercisable           409    
Weighted-average grant-date fair value (in dollars per share)           $ 0.41 $ 0.19 $ 0.22
Number of employees terminated their employment relationship           8    
Number of employees exercised their options           1    
Unrecognized share-based compensation           553    
Weighted-average vesting period           1 year 9 months 11 days    
Assumptions used in estimating the grant-date fair value of options granted                
Suboptimal exercise factor (in dollars per share)           $ 1.5 $ 1.5  
Risk-free interest rate (as a percent)           1.52%   0.85%
Expected volatility rate (as a percent)           84.86%   71.87%
Expected share option life             5 years 5 years
Estimated forfeiture rate (as a percent)           6.70%    
Fair value of ordinary share (in dollars per share)           $ 0.78   $ 0.39
Fair value of options vested           $ 273 $ 0 $ 90
Shares granted having exercise price below the fair value           3,519,283    
Share options | Employees | Minimum
                
Assumptions used in estimating the grant-date fair value of options granted                
Risk-free interest rate (as a percent)             0.62%  
Expected volatility rate (as a percent)             73.40%  
Expected share option life           4 years 7 months 13 days    
Fair value of ordinary share (in dollars per share)             $ 0.44  
Share options | Employees | Maximum
                
Assumptions used in estimating the grant-date fair value of options granted                
Risk-free interest rate (as a percent)             0.83%  
Expected volatility rate (as a percent)             89.21%  
Expected share option life           5 years    
Fair value of ordinary share (in dollars per share)             $ 0.62  
Share options | Senior management
                
Assumptions used in estimating the grant-date fair value of options granted                
Estimated forfeiture rate (as a percent)           6.70%    
Share options | Former employees
                
Number of Options                
Exercised (in shares)           (107,700)    
Aggregate Intrinsic Value                
Cashless exercises (in shares)           65,202    
Number of employees exercised their options           3    
Share options | One employee
                
SHARE-BASED PAYMENT                
Contractual life 5 years              
Share options vest and become exercisable on the first, second and third anniversary of the contractual date (as a percent) 33.30%              
Number of Options                
Granted (in shares) 400,000              
Weighted-Average Exercise Price                
Granted (in dollars per share) $ 0.99