Inventory (Schedule Of Components Of Inventory) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Inventory [Abstract]
Component parts	$ 4,814	$ 4,445
Work in process	4,300	3,864
Finished goods	4,082	3,157
Total	13,196	11,466
Inventory, net of reserves	$ 2,029	$ 1,918