SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Fair value measurement      
Proceeds from insurance claims $ 549    
Impairment charge of property, plant and equipment 3,549 0 11,590
Nonrecurring basis | Property, plant and equipment | Carrying amount
     
Fair value measurement      
Assets 4,098    
Nonrecurring basis | Property, plant and equipment | Total loss
     
Fair value measurement      
Assets (4,098)    
Nonrecurring basis | Property, plant and equipment | Liyuan | Carrying amount
     
Fair value measurement      
Assets 4,098    
Nonrecurring basis | Property, plant and equipment | Liyuan | Fair value
     
Fair value measurement      
Assets $ 0