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Note 7 - Inventories, Net
9 Months Ended
Sep. 30, 2019
Notes to Financial Statements  
Inventory Disclosure [Text Block]
Note
7
- Inventories, Net
 
   
September
30
,
201
9
   
December
31,
201
8
 
Raw materials
  $
1,852,768
    $
1,994,741
 
Work in process
   
3,124,781
     
3,052,224
 
Finished goods
   
13,462,890
     
14,934,581
 
In transit
   
148,183
     
480,716
 
Allowance for excess quantities
   
(243,216
)    
(454,774
)
Total inventories
  $
18,345,406
    $
20,007,488