Exercise price of the warrants.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column A

+ Details

Name:	invest_InvestmentWarrantsExercisePrice
Namespace Prefix:	invest_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Expiration date of warrants held.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column A

+ Details

Name:	invest_InvestmentWarrantsExpirationDate
Namespace Prefix:	invest_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The specified number of securities that each class of warrants or rights outstanding give the holder the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date.

+ References

No definition available.

+ Details

Name:	sgbx_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRightsOne
Namespace Prefix:	sgbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value of warrants per share.

+ References

No definition available.

+ Details

Name:	sgbx_FairValueOfExcercisePriceWarrantsPerShare
Namespace Prefix:	sgbx_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of warrants under affiliates.

+ References

No definition available.

+ Details

Name:	sgbx_FairValueOfWarrantsUnderAffiliates
Namespace Prefix:	sgbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Fair value of warrants under affiliates one.

+ References

No definition available.

+ Details

Name:	sgbx_FairValueOfWarrantsUnderAffiliatesOne
Namespace Prefix:	sgbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Exercise price of the warrants.

+ References

No definition available.

+ Details

Name:	sgbx_InvestmentWarrantsExercisePriceOne
Namespace Prefix:	sgbx_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Share based compensation arrangement by share based payment award purchase of common stock.

+ References

No definition available.

+ Details

Name:	sgbx_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchaseOfCommonStock
Namespace Prefix:	sgbx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	sgbx_WarrantsTextualAbstract
Namespace Prefix:	sgbx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the warrants or rights are exercisable, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(3))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 3

-Article 4

+ Details

Name:	us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959

+ Details

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

- Definition

Other than shares newly issued, the number of additional shares issued (for example, a stock split) or canceled (for example, to correct a share issuance), during the period under the plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherShareIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount per share or per unit of equity securities issued by non-development stage entity.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesIssuedPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	dei_LegalEntityAxis=sgbx_FrankCasanoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=sgbx_HillairCapitalInvestmentsLpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=sgbx_MastersonMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sgbx_DebtIssuanceAxis=sgbx_ConvertibleDebtIssuanceOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sgbx_DebtIssuanceAxis=sgbx_ConvertibleDebtIssuanceThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sgbx_DebtIssuanceAxis=sgbx_ConvertibleDebtIssuanceTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=sgbx_NewWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=sgbx_TwoThousandTenPrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=sgbx_TwoThousandTwelvePrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Warrants (Details Textual) (USD $)	12 Months Ended		1 Months Ended
Warrants (Details Textual) (USD $)	Dec. 31, 2014	Dec. 31, 2013	May 31, 2012	Mar. 31, 2012	Apr. 10, 2014
Warrants (Textual)
Expiration date of warrants	Apr. 10, 2019
Fair value of warrants	$ (11,024)sgbx_FairValueOfWarrantsUnderAffiliates	$ (11,024)sgbx_FairValueOfWarrantsUnderAffiliates
Change in fair value of financial instruments	1,386,469	358,973
Hillair Capital Investments Lp [Member]
Warrants (Textual)
Number of common stock entitle in warrants		2,604,651
Number of common stock entitle in warrants one	5,107,200
Investment Warrants, Exercise Price		$ 0.4488
Investment warrants exercise price one	$ 0.275
Expiration date of warrants		Jun. 27, 2018
Fair value of warrants	96,931	89,940
Date from which warrants or rights exercisable		Jun. 27, 2013
Frank Casano [Member]
Warrants (Textual)
Number of common stock entitle in warrants	1,041,861
Number of common stock entitle in warrants one	2,042,880
Investment Warrants, Exercise Price	$ 0.4488
Investment warrants exercise price one	$ 0.275
Fair value of warrants	51,153	48,191
Shares of common stock is entitled to purchase in connection with the exchange agreement	1,792,000
Shares issued, price per share	$ 0.25
Masterson [Member]
Warrants (Textual)
Number of common stock entitle in warrants	260,465
Number of common stock entitle in warrants one	510,720
Investment Warrants, Exercise Price	$ 0.4488
Investment warrants exercise price one	$ 0.275
Fair value of warrants	51,153	48,191
Shares of common stock is entitled to purchase in connection with the exchange agreement	448,000
Shares issued, price per share	$ 0.25
Warrant [Member]
Warrants (Textual)
Fair value of warrants	167,969
Change in fair value of financial instruments	701,612	253,051
Fair value of warrants One	490,601
New Warrant [Member]
Warrants (Textual)
Number of common stock entitle in warrants	8,322,000
Investment Warrants, Exercise Price	$ 0.275
Fair value of warrants	182,466				532,944
Fair value of warrants One	532,944
Convertible Debt Issuance One [Member] \| Merriman Capital Inc [Member]
Warrants (Textual)
Number of common stock entitle in warrants		52,093
Number of common stock entitle in warrants one		52,093
Investment Warrants, Exercise Price		$ 0.4488
Investment warrants exercise price one		$ 0.43
Fair value of warrants		8,166
Convertible Debt Issuance Two [Member] \| Merriman Capital Inc [Member]
Warrants (Textual)
Number of common stock entitle in warrants		18,233
Number of common stock entitle in warrants one		18,233
Investment Warrants, Exercise Price		$ 0.4488
Investment warrants exercise price one		$ 0.43
Fair value of warrants		2,858
Convertible Debt Issuance Two [Member] \| Next View Capital [Member]
Warrants (Textual)
Number of common stock entitle in warrants		651,163
Investment Warrants, Exercise Price		$ 0.4488
Fair value of warrants	33,926	31,479
Fair value of excercise price warrants per share		$ 0.23
Convertible Debt Issuance Two [Member] \| Another Investor [Member]
Warrants (Textual)
Number of common stock entitle in warrants		260,465
Investment Warrants, Exercise Price		$ 0.4488
Fair value of warrants	33,926	31,479
Convertible Debt Issuance Three [Member] \| Frank Casano [Member]
Warrants (Textual)
Number of common stock entitle in warrants		1,041,861
Investment Warrants, Exercise Price		$ 0.4488
Fair value of warrants		48,191
Convertible Debt Issuance Three [Member] \| Masterson [Member]
Warrants (Textual)
Number of common stock entitle in warrants		260,465
Investment Warrants, Exercise Price		$ 0.4488
Fair value of warrants		48,191
2010 Private Placement [Member]
Warrants (Textual)
Number of common stock entitle in warrants		1,044,584
Investment Warrants, Exercise Price		$ 0.25
Expiration date of warrants		Oct. 28, 2015
Fair value of warrants	3,476	41,078
2012 Private Placement [Member]
Warrants (Textual)
Number of common stock entitle in warrants			29,700	86,323
Investment Warrants, Exercise Price			$ 0.35	$ 0.35
Expiration date of warrants			May 22, 2017	Mar. 27, 2017
Fair value of warrants	$ 750	$ 4,050
Additional shares issued in connection with plan			702,872