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Inventory (Tables)
12 Months Ended
Jun. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
March 31, June 30,
(in thousands)20212020
Inventories, net:
        Raw Material$581 $613 
        Work-In-Process117 323 
        Finished Goods676 849 
Total$1,374 $1,785