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NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Disaggregation of revenue

Net sales by type

  2019     2018  
(in thousands)            
Equipment Sales   $ 12,553     $ 19,002  
Adapter Sales     5,535       6,954  
Software and Maintenance Sales     3,480       3,268  
Total   $ 21,568     $ 29,224