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Namespace Prefix:	efoi_
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Balance Type:	na
Period Type:	duration

Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

+ References

+ Details

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_EscrowDeposit
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

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- Definition

The value of all consideration given or received by the Entity in the significant acquisition or disposal.

+ References

No definition available.

+ Details

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Period Type:	instant

Note 3 - Discontinued Operations (Details) (USD $)	3 Months Ended	9 Months Ended		1 Months Ended		3 Months Ended		9 Months Ended
Note 3 - Discontinued Operations (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2014	Mar. 25, 2014 Released from Escrow [Member] Pool and Commercial Products [Member]	Sep. 30, 2014 Uncertainty on the Collection of Escrow [Member] Pool and Commercial Products [Member]	Sep. 30, 2014 Pool and Commercial Products [Member]	Sep. 30, 2013 Pool and Commercial Products [Member]	Sep. 30, 2014 Pool and Commercial Products [Member]	Sep. 30, 2013 Pool and Commercial Products [Member]	Nov. 26, 2013 Pool and Commercial Products [Member]
Note 3 - Discontinued Operations (Details) [Line Items]
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds										$ 5,200,000
Escrow Deposit			300,000		300,000					500,000
Proceeds from Divestiture of Businesses				100,000
Disposal Group, Including Discontinued Operation, Revenue						0	1,200,000	0	3,800,000
Disposal Group, Including Discontinued Operation, Operating Expense	$ 940,000	$ 3,000,000				$ 0		$ 20,000