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Inventories
6 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Inventories
4.Inventories

 

Inventories are summarized as follows:

 

   December 31,   June 30, 
   2019   2019 
Raw material  $5,991,584   $4,830,207 
Work-in-process   462,383    224,252 
Finished goods   5,176,194    2,743,361 
    11,630,161    7,797,820 
Less valuation reserve   (444,258)   (444,258)
   $11,185,903   $7,353,562