Summary of Siginificant Accounting Policies (Details 2) (HyPulsion)	3 Months Ended
Mar. 31, 2015	Apr. 19, 2013	Feb. 29, 2012
Joint Venture
Ownership interest percentage	20.00%		45.00%
Percentage of share in profits of joint venture	20.00%
Axane, S.A.
Joint Venture
Ownership interest percentage	80.00%		55.00%
Additional ownership interest purchased by counterparty from the Company		25.00%
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%

The percentage of additional ownership of common stock or equity participation in the investee accounted for under the equity method of accounting purchased by the counterparty.

No definition available.

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- Definition

The percentage of share in profits of investee accounted for under the equity method.

+ References

No definition available.

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- Definition

The percentage of additional ownership interest of the joint venture that can be purchased by entity from counterparty between specified time at a formula price.

+ References

No definition available.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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