Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Difference between expected income tax provision applying domestic federal statutory tax rate and reported income tax provision
Expected provision for Federal income taxes at the statutory rate	$ 857	$ 13,879	$ 2,868
State income taxes, net of Federal benefit	808	1,827	1,023
Deemed foreign dividends	0	0	1,462
Charges without tax benefit	1,741	2,187	1,478
Change in valuation allowance	1,295	311	25
Excess tax benefits on stock-based compensation	(496)	0	0
IRS S199 deduction	(749)	(999)	0
Foreign tax credits	0	0	(1,433)
Research and development and other tax credits	(1,626)	(1,928)	(1,197)
Foreign tax differential	1,496	(815)	(529)
Noncontrolling interest	(112)	1,164	6,669
Change in uncertain tax positions	(22)	(569)	0
Adjustment to tax accounts	(924)	(786)	0
Other	40	(155)	(276)
Provision for income taxes	$ 2,308	$ 14,116	$ 10,090