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OTHER ASSETS (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]      
Original amounts $ 26,075 $ 25,892  
Accumulated amortization (9,177) (5,266)  
Total other intangible assets 16,898 20,626  
Amortization expense 3,824 3,427 534
Estimated amortization expenses for the following years:      
2013 3,379    
2014 3,297    
2015 3,342    
2016 2,333    
2017 2,306    
Non-compete Agreements [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Original amounts 2,019 1,974  
Accumulated amortization (1,972) (1,509)  
Distribution Relationships [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Original amounts 1,952 1,926  
Accumulated amortization (1,357) (1,174)  
Customer Relationships [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Original amounts 7,258 7,139  
Accumulated amortization (2,395) (1,140)  
Distribution Agreement [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Original amounts 14,616 14,623  
Accumulated amortization (3,223) (1,213)  
Backlog [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Original amounts 230 230  
Accumulated amortization $ (230) $ (230)