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CONTINGENT CONSIDERATION (Details 1) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Beginning balance $ 9,693    
Net gains on remeasurement of contingent consideration (3,522) (206) 0
Interest expense 90    
Ending balance $ 6,261 $ 9,693