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Sales, Billings, and Costs on Uncompleted Contracts | 12 Months Ended
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Dec. 31, 2017
Costs in Excess of Billings on Uncompleted Contracts or Programs [Abstract] |
Revenue and Billings On Uncompleted Contracts In Excess of Costs ,Description [Text Block] | Note 5 – Sales, Billings, and Costs on Uncompleted Contracts In 2016, the Company entered into a multi-flare contract with a third party contractor to supply its Duplex technology to a major California oil producer to retrofit its enclosed wellhead ground flares. This contract is valued at approximately $900,000 and includes certain performance obligations related to emission levels. As such, each flare retrofit is considered a separate transaction where revenues are recognized upon delivery of the unit and satisfaction of the performance obligation. In the three months ended March 31, 2017, revenue totaling $360,000 was recognized with the completion of the contractual obligations. One additional unit with a contract value totaling $180,000 was completed during the fourth quarter of 2017. The Company also has contracts with three oil producing companies for the installation of its Duplex technology with a total value of approximately $336,000. To date, all of the Company’s sales have been Duplex products sold in the United States. At December 31, 2017, the Company had contract assets of $184,000 and contract liabilities of $0.

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