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NOTE 3 - PROPERTY, PLANT AND EQUIPMENT, NET
 3 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
NOTE 3 - PROPERTY, PLANT AND EQUIPMENT, NET

Property and equipment consisted of the following components:

 

   March 31,
2021		  December 31,
2020
 (in thousands)          
 Leasehold improvements  $420   $421 
 Equipment   5,609    5,625 
 Sales demonstration equipment   824    963 
    6,853    7,009 
 Less accumulated depreciation   5,876    5,793 
 Property and equipment, net  $977   $1,216