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Note 3 - Inventories
 6 Months Ended
Jun. 30, 2019
Notes to Financial Statements  
Inventory Disclosure [Text Block]
NOTE
3
– INVENTORIES
 
Inventories consisted of the following as of:
 
   
June 30, 2019
    
December 31, 2018
  
                 
Raw materials
   $
1,655
     $
4,346
  
Finished goods
    
9,119
      
5,997
  
     
10,774
      
10,343
  
Reserve for obsolete inventory
    
(1,908
 )    
(2,398
 )
                 
    $
8,866
     $
7,945