INTANGIBLE ASSETS (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Intangible assets      
Amortization expenses $ (178) $ (199) $ (213)
Continuing operations | Cost of revenues
     
Intangible assets      
Amortization expenses (168) (45) (45)
Continuing operations | General and administrative expenses
     
Intangible assets      
Amortization expenses (10) (120) (116)
Intangible assets, excluding land use rights
     
Intangible assets      
Gross Carrying Value 4,758 4,668  
Accumulated Amortization (897) (719)  
Foreign Currency Translation Adjustment 853 711  
Total 4,714 4,660  
Intangible assets, excluding land use rights | Continuing operations
     
Intangible assets      
Amortization expenses (178) (165) (161)
Software
     
Intangible assets      
Estimated useful life 5 years    
Gross Carrying Value 90    
Accumulated Amortization (11)    
Foreign Currency Translation Adjustment 1    
Total 80    
Binglangjiang | Development right
     
Intangible assets      
Estimated useful life 30 years    
Gross Carrying Value 2,909 2,909  
Accumulated Amortization (749) (629)  
Foreign Currency Translation Adjustment 706 619  
Total 2,866 2,899  
Dongguan hydropower project of Jinling | Dam use right
     
Intangible assets      
Estimated useful life 40 years    
Gross Carrying Value 1,759 1,759  
Accumulated Amortization (137) (90)  
Foreign Currency Translation Adjustment 146 92  
Total $ 1,768 $ 1,761