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1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
9 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]  
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
In the following table, revenue is disaggregated by primary geographical market, major product line, and timing of revenue recognition.

   

Three Months Ended September 30,

   

Nine Months Ended September 30,

 
   

2018

   

2017

   

2018

   

2017

 

Primary geographical markets:

                               

United States

  $ 1,622,000     $ 1,514,000     $ 5,003,000     $ 5,195,000  

Asia

    257,000       143,000       627,000       513,000  

Other

    23,000       22,000       77,000       70,000  
      1,902,000       1,679,000       5,707,000       5,778,000  

Major product lines:

                               

ODM projects

  $ 1,006,000     $ 912,000     $ 3,077,000     $ 3,146,000  

ODM components

    719,000       598,000       2,147,000       2,122,000  

Distribution components

    177,000       169,000       483,000       510,000  
      1,902,000       1,679,000       5,707,000       5,778,000  

Timing of revenue recognition:

                               

Products transferred at a point in time

  $ 1,902,000     $ 1,679,000     $ 5,707,000     $ 5,778,000