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INCOME TAXES (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
INCOME TAXES [Abstract]    
Provision for income taxes $ 50us-gaap_IncomeTaxExpenseBenefit $ 419us-gaap_IncomeTaxExpenseBenefit
Effective income tax rate (in hundredths) 0.70%us-gaap_EffectiveIncomeTaxRateContinuingOperations 4.20%us-gaap_EffectiveIncomeTaxRateContinuingOperations