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NOTE 7 — Segment Information and Concentrations (Tables)
9 Months Ended
Sep. 30, 2021
Segment Reporting [Abstract]  
Revenue from External Customers by Geographic Areas [Table Text Block]
                               
   Three Months Ended
September 30,
  Nine Months Ended
September 30,
   2021  2020  2021  2020
Revenues:            
   Americas  $4,641,767   $3,290,992   $12,958,256   $8,676,626 
   Europe   967,752    567,977    2,621,278    1,383,518 
   Asia Pacific   709,525    249,769    1,505,379    984,304 
      Total revenues  $6,319,044  $4,108,738  $17,084,913  $11,044,448
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]
                               
   Three Months Ended
September 30,
  Nine Months Ended
September 30,
   2021  2020  2021  2020
Ingram Micro Inc.   33%   30%   29%   32%
BlueStar, Inc.   15%   29%   25%   23%
ScanSource, Inc.   14%   *   11%   *
Concentration of Credit Risk
                   
   September 30,  December 31,
   2021  2020
Ingram Micro, Inc.   37%   34%
ScanSource, Inc.   26%   

13

%
BlueStar, Inc.   16%   29%
Bluestar Europe Distribution BV   *   11%
* Customer accounted for less than 10% of the Company accounts receivable balances