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PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Property, plant and equipment $ 14,829 $ 14,857
Less: Accumulated depreciation (8,654) (8,522)
Total property, plant and equipment, net 6,175 6,335
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 48 50
Building [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 2,478 2,547
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 10,243 10,187
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 427 430
Computer Hardware And Software [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 1,089 1,097
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment 526 528
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment $ 18 $ 18