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Income Taxes 4 (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Reconciliation of the Company's total gross unrecognized income tax benefits      
Unrecognized Income Tax Benefits at beginning of the year $ 3,533 $ 2,915 $ 2,604
Current year tax positions 143 574 539
Prior year tax positions 636 259 0
Expirations of statutes of limitations (324) (189) (132)
Settlements 0 (26) (96)
Unrecognized Income Tax Benefits at end of year $ 3,988 $ 3,533 $ 2,915