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Note 5 - Inventories
12 Months Ended
Jun. 30, 2020
Notes to Financial Statements  
Inventory Disclosure [Text Block]
5.
INVENTORIES
 
The components of inventories at 
June 30, 
2020
and
2019
were as follows:
 
   
2020
   
2019
 
Raw materials
  $
1,953,031
    $
1,848,340
 
Finished goods
   
5,149,200
     
6,604,408
 
     
7,102,231
     
8,452,748
 
Reserve for obsolete inventory
   
(1,563,437
)    
(1,601,300
)
Total inventories
  $
5,538,794
    $
6,851,448