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Significant Accounting Policies (Inventory) (Details) - USD ($)
Dec. 31, 2020
Jun. 30, 2020
schedule of inventory [Abstract]    
Inventory, Raw Materials, Net of Reserves $ 598,000 $ 613,000
Inventory, Work in Process, Net of Reserves 97,000 323,000
Inventory, Finished Goods, Net of Reserves 637,000 849,000
Inventory, net $ 1,331,575 $ 1,785,030