Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Loss Contingencies [Line Items]
Rent expense	$ 2,157	$ 2,340	$ 2,485
Minimum [Member]
Loss Contingencies [Line Items]
Terminated employees severance compensation payment period	6 months
Maximum [Member]
Loss Contingencies [Line Items]
Terminated employees severance compensation payment period	12 months
Term of termination CEO resigns within period of a change of control	3 months
Term of termination, CEO is terminated by company within period of a change of control	1 year
Contingent liability under employment contract agreements	$ 2,217