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Inventories (Tables)
3 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Inventory balances
  

As of 

 

As of 

  

September 30, 

 

June 30, 

  

2020 

 

2020 

Raw materials  $542,000   $397,000 
Finished goods, net   10,938,000    9,603,000 
   $11,480,000   $10,000,000