Income Taxes (Details 5) $ in Millions	Jun. 30, 2015 USD ($)
Research and development tax credit carryforward | State
Tax Credit Carryforward
Tax credit carryforward	$ 1.8
Research and development tax credit carryforward | Domestic | U.S. Federal
Tax Credit Carryforward
Tax credit carryforward	1.9
Alternative minimum tax credit carryforward | Domestic | U.S. Federal
Tax Credit Carryforward
Tax credit carryforward	0.4
Foreign tax credit carryforwards | Domestic | U.S. Federal
Tax Credit Carryforward
Tax credit carryforward	$ 2.6