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Nature of Operations | 9 Months Ended
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Sep. 30, 2016
Disclosure Text Block [Abstract] |
Nature of Operations | NATURE OF OPERATIONS Energy Focus, Inc. and its subsidiary engage in the design, development, manufacturing, marketing, and sale of energy-efficient lighting systems. We operate in a single industry segment, developing and selling our energy-efficient light-emitting diode (“LED”) lighting products into the military maritime market, and general commercial and industrial markets. We have aligned our resources and focused our efforts on the sale of our LED lighting products, in particular our military and commercial tubular LED (“TLED”) lines of products, into targeted vertical markets of military maritime, government, healthcare, education, industrial and manufacturing, and national retail. Our goal is to become a leader in the LED lighting retrofit market by replacing fluorescent lamps in general purpose and high-intensity discharge ("HID") lighting in low-bay and high-bay applications with our innovative, high-quality TLED products. In order to focus on this business opportunity, we have exited non-core businesses. In 2013, we sold our pool lighting products division. During 2014, we shifted our focus away from the turnkey solutions business of Energy Focus LED Solutions, LLC ("EFLS"), which had historically incurred lower gross margins. We completed all outstanding solutions-based projects in the first quarter of 2015, are no longer accepting new projects, and fully exited the business as of September 2015. In August 2015, we sold our United Kingdom subsidiary, Crescent Lighting Limited (“CLL”). In 2013, we sold and discontinued our pool products business. As a result of exiting the turnkey solutions, CLL, and the pool products businesses, we have eliminated all net sales and expenses associated with those businesses from the Condensed Consolidated Statements of Operations and have reported the net losses as discontinued operations. Please refer to Note 3, “Discontinued Operations,” for more information on our disposition of these businesses.

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- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6003-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=64851502&loc=SL51803626-108592 + Details
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