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NOTE 3 - PROPERTY, PLANT AND EQUIPMENT, NET (Tables)
9 Months Ended
Sep. 30, 2017
Note 3 - Property Plant And Equipment Net Tables  
PROPERTY, PLANT AND EQUIPMENT, NET
    September 30,2017     December 31,2016  
 (in thousands)            
 Leasehold improvements   $ 409     $ 376  
 Equipment     5,293       4,449  
 Sales demonstration equipment     1,102       1,158  
      6,804       5,983  
 Less accumulated depreciation     4,646       4,108  
 Property and equipment, net   $ 2,158     $ 1,875