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NET SALES (Deferred revenue and are included in Accrued expenses and other liabilities on the Consolidated Balance Sheets) (Details 3) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Accrued expenses and other current liabilities        
Disaggregation of Revenue [Line Items]        
Deferred current revenue $ 1,315 $ 864 $ 614 $ 416