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NOTE 4 - PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Abstract]    
Leasehold improvements $ 395 $ 399
Equipment 5,606 5,378
Sales demonstration equipment 778 942
Property and equipment gross 6,779 6,719
Less accumulated depreciation 5,111 4,734
Property and equipment, net $ 1,668 $ 1,985