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SIGNIFICANT ACCOUNTING POLICIES - SUMMARY OF INVENTORY (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Raw materials $ 4,521 $ 5,110
Finished goods 3,048 2,080
Gross inventories 7,569 7,190
Less: reserve for obsolescence (1,411) (1,233)
Inventories, net $ 6,158 $ 5,957