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Represents the amount of accounts payable and accrued expenses payable within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Percentage of investment recognized as gain

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Acquisition of HyPulsion (Details) $ in Thousands		3 Months Ended	9 Months Ended
Acquisition of HyPulsion (Details) $ in Thousands	Jul. 31, 2015 USD ($) shares	Sep. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Aug. 26, 2015 USD ($)	Dec. 31, 2014 USD ($)
Business Combination, Goodwill [Abstract]
Total goodwill recognized		$ 399	$ 399			$ 447
(Loss) gain on acquisition activity, net		$ (116)	$ (116)	$ 1,014
HyPulsion
Preliminary allocation of the purchase price to the estimated fair value of the net assets acquired
Total Net Assets Acquired, excluding goodwill	$ (6,230)
Business Combination, Goodwill [Abstract]
Consideration paid	11,474
Fair value of prior interest	2,869
Net assets acquired	(6,230)
Total goodwill recognized	$ 8,113
Percentage of investment recognized as gain	0.2
(Loss) gain on acquisition activity, net	$ 2,900
Axane, S.A. \| HyPulsion
Business Acquisition [Line Items]
Percentage of voting interest acquired	80.00%
Value of shares of common stock issued	$ 11,500				$ 3,000
Number of shares of common stock issued \| shares	4,781,250
Additional shares issuable in certain circumstances \| shares	1,613,289
Preliminary allocation of the purchase price to the estimated fair value of the net assets acquired
Cash and cash equivalents	$ 1,811
Accounts receivable, net	917
Inventory	475
Prepaid expenses and other assets	746
Property and equipment	767
Identifiable intangibles	4,159
Accounts payable, accrued expenses, deferred revenue and other liabilities	(2,645)
Total Net Assets Acquired, excluding goodwill	6,230
Business Combination, Goodwill [Abstract]
Net assets acquired	$ 6,230