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Inventory (Schedule of Components of Inventory) (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Jun. 30, 2019
Inventory Disclosure [Abstract]    
Component parts $ 4,519 $ 5,229
Work in process 1,714 1,383
Finished goods 4,154 4,198
Total $ 10,387 $ 10,810