Summary of Siginificant Accounting Policies (Details 2) - Jun. 30, 2015 - HyPulsion	Total
Joint Venture
Ownership interest percentage	20.00%
Axane, S.A.
Joint Venture
Ownership interest percentage	80.00%
Additional ownership interest that can be purchased by entity from counterparty at any time between January 4, 2018 and January 29, 2018 at a formula price	60.00%