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NOTE 3 - PROPERTY, PLANT AND EQUIPMENT, NET (Details) (in thousands) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Abstract]    
Leasehold improvements $ 379 $ 376
Equipment 4,701 4,449
Sale demonstration equipment 1,219 1,158
Property and equipment gross 6,299 5,983
Less accumulated depreciation 4,301 4,108
Property and equipment, net $ 1,998 $ 1,875