Additional stock to be issued.

No definition available.

Name:	sfes_AdditionalStockToBeIssued
Namespace Prefix:	sfes_
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Period Type:	duration

- Definition

The number of stock to be issued upon exercise of stock options.

+ References

No definition available.

+ Details

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Namespace Prefix:	sfes_
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Period Type:	duration

- Definition

The number of stock to be issued upon exercise of warrant.

+ References

No definition available.

+ Details

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Namespace Prefix:	sfes_
Data Type:	xbrli:sharesItemType
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- Definition

Percentage of covered securities transferred under the Lock-up and voting agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	sfes_
Data Type:	num:percentItemType
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Period Type:	duration

- Definition

Percentage of ownership interest.

+ References

No definition available.

+ Details

Name:	sfes_PercentageOfOwnershipInterest
Namespace Prefix:	sfes_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Describe the conversion features of preferred stock if preferred stock is convertible. That is, shares of preferred stock into which another convertible security was converted, or shares of preferred stock into which another class of preferred stock was converted.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

-Article 5

+ Details

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Period Type:	duration

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

-URI http://asc.fasb.org/extlink&oid=6525746

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section C

+ Details

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- Definition

Number of new stock issued during the period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Details

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SUBSEQUENT EVENT (Details Textual) (USD $)	1 Months Ended	0 Months Ended
SUBSEQUENT EVENT (Details Textual) (USD $)	Feb. 29, 2012	Aug. 13, 2013 Subsequent Event [Member]	Aug. 13, 2013 Subsequent Event [Member] Maximum [Member]	Aug. 13, 2013 Subsequent Event [Member] Minimum [Member]	Aug. 13, 2013 Subsequent Event [Member] Private Placement [Member] Series B Preferred Stock [Member]
Subsequent Event [Line Items]
Stockholders Equity Note, Stock Split		1.1723
Number of Stock To Be Issued Upon Exercise of Stock Options		15,939,000
Number of Stock To Be Issued Upon Exercise of Warrant		1,421,000
Percentage of Ownership Interest		65.00%
Stock Issued During Period, Shares, New Issues	20,794,000				7,500,000
Preferred Stock Par Or Stated Value Per Share					$ 0.01
Preferred Stock, Conversion Basis					4.00
Additional Stock To Be Issued					1,250,000
Percentage of Covered Securities Transferred Under The Lock-up and Voting Agreement			75.00%	50.00%