Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Difference between expected income tax provision applying domestic federal statutory tax rate and reported income tax provision
Expected provision (benefit) for federal income taxes at the statutory rate	$ (3,408)	$ 857	$ 13,879
State income taxes, net of federal benefit	247	808	1,827
Impairment of non-deductible goodwill	2,342	0	0
Charges without tax benefit	1,100	1,741	2,187
Change in valuation allowance	1,173	1,295	311
Excess tax benefits on stock-based compensation	511	(496)	0
Remeasurement of deferred taxes	(455)	0	0
IRS S199 deduction	0	(749)	(999)
Research and development and other tax credits	(1,665)	(1,626)	(1,928)
Foreign tax differential	(10)	1,496	(815)
Noncontrolling interest	0	(112)	1,164
Change in uncertain tax positions	(7)	(22)	(569)
Adjustment to tax accounts	(435)	(924)	(786)
Other	(61)	40	(155)
Provision (benefit) for federal, state and foreign income taxes	$ (668)	$ 2,308	$ 14,116