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FAIR VALUE MEASUREMENTS (Details) - Fair value measurement - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Level 1    
Fair Value Measurements    
Total $ 5,578 $ 1,441
Level 2    
Fair Value Measurements    
Total   (204)
Level 3    
Fair Value Measurements    
Total 8,500  
Recurring | Level 1 | Money market funds    
Fair Value Measurements    
Cash and cash equivalents 3,440 1,441
Recurring | Level 1 | Bank acceptance notes    
Fair Value Measurements    
Bank acceptance notes 2,138  
Recurring | Level 2    
Fair Value Measurements    
Other liabilities - Deferred compensation   $ (204)
Non-recurring | Level 3    
Fair Value Measurements    
Held-for-sale $ 8,500