Income Taxes (Details 3) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Deferred tax assets:
Net operating loss carryforwards	$ 10,869	$ 15,243
Alternative minimum tax credit carryforwards	868	671
Accrued expenses and other timing	912	929
Total gross deferred tax assets	12,649	16,843
Less — valuation allowance	(11,887)	(16,009)
Net deferred tax assets	762	834
Deferred tax liabilities:
Property and equipment, principally due to differences in depreciation	(762)	(834)
Total gross deferred tax liabilities	(762)	(834)
Net deferred tax assets (liabilities)	$ 0	$ 0