Significant Accounting Policies (Details 7) - Major Types of Debt and Equity Securities [Domain] - Recurring - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	$ 130,232	$ 175,875
Marketable Securities	0	0
Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents	0	0
Marketable Securities	$ 62,244	$ 98,889