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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Reconciliation of beginning and ending amount of unrecognized tax benefits      
Beginning balance $ 570 $ 545 $ 494
Decreases related to prior year tax positions     10
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions (3) (8)  
Increases related to current year tax positions (30) (33) (41)
Ending balance $ 597 $ 570 $ 545