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NET SALES (Disaggregates revenues between domestic and international) (Details 1) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Disaggregation of Revenue [Line Items]    
Net sales $ 77,536 $ 71,040
Domestic    
Disaggregation of Revenue [Line Items]    
Net sales 71,546 67,221
International    
Disaggregation of Revenue [Line Items]    
Net sales $ 5,990 $ 3,819