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LONG-TERM DEPOSITS (Tables)
12 Months Ended
Dec. 31, 2014
LONG-TERM DEPOSITS [Abstract]  
Schedule of Long Term Deposits
As of December 31,
2013   2014   
     
Concession fee deposits $ 19,780     $ 19,544  
Office rental deposits     717       756  
    $ 20,497     $ 20,300