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Inventories - Schedule of Inventories (Details) - USD ($)
Jun. 30, 2021
Jun. 30, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 8,185,000 $ 4,231,000
Work in process 918,000 332,000
Finished goods 1,410,000 693,000
Total inventories $ 10,513,000 $ 5,256,000