Inventory (Schedule Of Components Of Inventory) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Inventory [Abstract]
Component parts	$ 5,055	$ 4,445
Work in process	5,032	3,864
Finished goods	5,233	3,157
Total	15,320	11,466
Inventory, net of reserves	$ 1,957	$ 1,918