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NOTE 4 - PROPERTY, PLANT AND EQUIPMENT, NET
12 Months Ended
Dec. 31, 2017
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT, NET
   December 31,
2017
  December 31,
2016
 (in thousands)          
 Leasehold improvements  $416   $376 
 Equipment   5,279    4,449 
 Sales demonstration equipment   1,315    1,158 
    7,010    5,983 
 Less accumulated depreciation   4,552    4,108 
 Property and equipment, net  $2,458   $1,875 

 

Total depreciation expense recorded for 2017 and 2016 was $822,000 and $602,000, respectively.