Fair Value Measurements (Schedule of Fair Value for Financial Assets and Liabilities Measure on Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015
Assets
Long-term debt, fair value	$ 65,250	$ 66,900
Recurring
Assets
Total	4,768	7,770
Recurring | Money market funds
Assets
Investments	4,768	4,770
Recurring | Level 1
Assets
Total	4,768	4,770
Recurring | Level 1 | Money market funds
Assets
Investments	4,768	4,770
Recurring | Level 2
Assets
Total	0	0
Recurring | Level 2 | Money market funds
Assets
Investments	0	0
Recurring | Level 3
Assets
Total	0	0
Recurring | Level 3 | Money market funds
Assets
Investments	$ 0	$ 0