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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Changes in accumulated other comprehensive income (loss)    
Balance at the beginning of the period $ (1,785) $ 628
Foreign currency translation gain (loss) in other comprehensive income (1,479) (750)
Balance at the end of the period $ (3,264) $ (122)