Receivables, Deferred Revenue and Backlog	3 Months Ended
Mar. 31, 2016
Deferred Revenue Disclosure [Abstract]
Receivables, Deferred Revenue and Backlog	NOTE 15 – RECEIVABLES, DEFERRED REVENUE AND BACKLOG As of March 31, 2016, total backlog for prototype engines to be delivered was $400,000 from the Combilift agreement, of which $100,000 has been paid and has been recorded as deferred revenue. A customer advanced $25,000 as a deposit towards progress payments on a $80,000 contract for engines to be delivered in 2017 and another customer contributed $5,700 in material parts towards an engine contract.

- Definition

The entire disclosure for deferred revenues at the end of the reporting period, and description and amounts of significant changes that occurred during the reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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