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Note 5 - Inventories, Net
3 Months Ended
Mar. 31, 2021
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE
5:
         INVENTORIES, NET
 
Inventories consist of:
               
   
March 31,
2021
   
December 31,
2020
 
                 
Raw materials
  $
1,059,663
    $
928,221
 
Work-in-process
   
280,337
     
195,618
 
Inventories
  $
1,340,000
    $
1,123,839