XML 43 R32.htm IDEA: XBRL DOCUMENT v3.20.2
Note 8 - Inventory (Tables)
6 Months Ended
Jun. 30, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
June 30,
   
December 31,
 
   
2020
   
2019
 
                 
Finished goods
  $
247,540
    $
287,761
 
Fabricated assemblies
   
141,358
     
141,358
 
Total inventory
  $
388,898
    $
429,119