Acquisition of HyPulsion (Details)	Aug. 26, 2015 USD ($) shares	Jul. 31, 2015 USD ($) shares	Dec. 31, 2015 USD ($)
Business Combination, Goodwill [Abstract]
Total goodwill recognized			$ 8,478,000
HyPulsion
Preliminary allocation of the purchase price to the estimated fair value of the net assets acquired
Total Net Assets Acquired, excluding goodwill		$ (5,812,000)
Business Combination, Goodwill [Abstract]
Consideration paid		11,474,000
Add:fair value of prior interest		2,869,000	$ 0
Less: net assets acquired		(5,812,000)
Total goodwill recognized		$ 8,531,000
Percentage of investment recognized as gain		20
(Loss) gain on acquisition activity, net		$ 2,900,000
Axane, S.A. | HyPulsion
Business Acquisition [Line Items]
Percentage of voting interest acquired		80.00%
Value of shares of common stock issued	$ 3,000,000	$ 11,500,000
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		$ 1,496,000
Accounts receivable, net		917,000
Inventory		765,000
Prepaid expenses and other assets		746,000
Leased property under capital lease		159,000
Identifiable intangibles		4,159,000
Accounts payable, accrued expenses, and other liabilities		(2,430,000)
Total Net Assets Acquired, excluding goodwill		5,812,000
Business Combination, Goodwill [Abstract]
Less: net assets acquired		$ 5,812,000