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Convertible Debentures (Details Textual) (USD $)
 0 Months Ended 12 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended
Oct. 15, 2014
Jul. 15, 2014
Apr. 10, 2014
Dec. 31, 2014
Dec. 31, 2013
Jul. 01, 2014
Apr. 01, 2014
Apr. 30, 2013
Jan. 09, 2013
Dec. 27, 2012
Jan. 08, 2013
Convertible Debentures (Textual)                      
Interest rate on convertible debenture     8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage                
Due date of convertible debentures     Apr. 01, 2016                
Amount of discount on debentures       $ 794,350us-gaap_DebtInstrumentUnamortizedDiscount              
Total amortization relating to the discount       718,640us-gaap_AmortizationOfFinancingCostsAndDiscounts 436,947us-gaap_AmortizationOfFinancingCostsAndDiscounts            
Conversion price     $ 0.25us-gaap_DebtInstrumentConvertibleConversionPrice1                
Legal fees       20,763us-gaap_LegalFees              
Convertible debentures redemption amount 280,000sgbx_ConvertibleDebenturesRedemptionAmount 280,000sgbx_ConvertibleDebenturesRedemptionAmount                  
Fair value of conversion option liabilities     490,601sgbx_FairValueOfConversionOptionLiabilities 110,000sgbx_FairValueOfConversionOptionLiabilities              
Interest expense on the convertible debentures       280,422us-gaap_InterestExpenseDebtExcludingAmortization 154,351us-gaap_InterestExpenseDebtExcludingAmortization            
Fair value of option liabilities       794,350sgbx_FairValueOfConversionOptionLiabilitiesOne              
Covertible debentures maturity value     1,915,200sgbx_DebenturesStatedMaturityValue                
Converion price, description     The Exchange Agreement and the 2014 SPA trigger anti-dilution adjustments to the warrants issued on the Existing Debentures based on a $0.25 per share conversion price (adjusted from the original stated conversion price of $0.43 per share), which reduces the exercise price to $0.25 per share and increases the number of shares issuable upon the exercise of the Existing Warrants from 4,818,605 to 8,288,000 shares.                
Fair value of warrants       (11,024)sgbx_FairValueOfWarrantsUnderAffiliates (11,024)sgbx_FairValueOfWarrantsUnderAffiliates            
Debt instrument frequency of payment     On January 1, April 1, July 1 and October 1, beginning on October 1, 2014.                
Debt default description       Upon any Event of Default (as defined in the Debenture), the outstanding principal amount of the Debenture, plus liquidated damages, interest, a premium of 30% and other amounts owing in respect thereof through the date of acceleration, shall become, at the 2014 Holders' election, immediately due and payable in cash. Commencing five days after the occurrence of any Event of Default, the interest rate on the Debenture shall accrue at an interest rate equal to the lesser of 18% per annum or the maximum rate permitted under applicable law.              
Debt Instrument, Redemption, Period One [Member]                      
Convertible Debentures (Textual)                      
Debt redemption amount       998,925sgbx_DebtInstrumentPeriodicRedemptionAmount
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodOneMember		 998,925sgbx_DebtInstrumentPeriodicRedemptionAmount
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodOneMember		            
Debt Instrument, Redemption, Period Two [Member]                      
Convertible Debentures (Textual)                      
Debt redemption amount       998,925sgbx_DebtInstrumentPeriodicRedemptionAmount
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodTwoMember		 998,925sgbx_DebtInstrumentPeriodicRedemptionAmount
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodTwoMember		            
Debt Instrument, Redemption, Period Three [Member]                      
Convertible Debentures (Textual)                      
Debt redemption amount       1,997,850sgbx_DebtInstrumentPeriodicRedemptionAmount
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodThreeMember		 1,997,850sgbx_DebtInstrumentPeriodicRedemptionAmount
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodThreeMember		            
Hillair Capital Investments Lp [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures         144,769us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember		            
Convertible debentures redemption amount           756,000sgbx_ConvertibleDebenturesRedemptionAmount
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember		 756,000sgbx_ConvertibleDebenturesRedemptionAmount
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember		        
Description for conversion price for periodic redemption in shares       Based on a conversion price equal to the lesser of (a) $0.43 per share, subject to adjustments upon certain events, and (b) 90% of the average of the volume weighted average price for the 20 consecutive trading days prior to the applicable redemption date, provided that the conversion price shall be equal to at least a $0.01 discount to the volume weighted average price for the 20 consecutive days that is immediately prior to the applicable redemption date.              
Fair value of warrants       96,931sgbx_FairValueOfWarrantsUnderAffiliates
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember		 89,940sgbx_FairValueOfWarrantsUnderAffiliates
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember		            
Frank Casano [Member]                      
Convertible Debentures (Textual)                      
Fair value of common stock               60,801sgbx_FairValueOfCommonStock
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		      
Face amount of convertible debentures               560,000us-gaap_DebtInstrumentFaceAmount
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		      
Interest rate on convertible debenture               8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		      
Due date of convertible debentures               Oct. 15, 2014      
Proceeds from issuance of convertible debentures               500,000us-gaap_ProceedsFromIssuanceOfSecuredDebt
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		      
Number of shares issuable upon conversion of debentures               1,302,326us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		      
Amount of discount on debentures               60,000us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		      
Description for conversion price for periodic redemption in shares       Based on a conversion price equal to the lesser of (a) $0.43 per share, subject to adjustments upon certain events, and (b) 90% of the average of the volume weighted average price for the 20 consecutive trading days prior to the applicable redemption date, provided that the conversion price shall be equal to at least a $0.01 discount to the volume weighted average price for the 20 consecutive days that is immediately prior to the applicable redemption date.              
Fair value of warrants       51,153sgbx_FairValueOfWarrantsUnderAffiliates
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		 48,191sgbx_FairValueOfWarrantsUnderAffiliates
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		            
Next View Capital [Member]                      
Convertible Debentures (Textual)                      
Fair value of common stock                 69,933sgbx_FairValueOfCommonStock
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Face amount of convertible debentures                 392,000us-gaap_DebtInstrumentFaceAmount
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Interest rate on convertible debenture                 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Due date of convertible debentures                 Jul. 01, 2014    
Proceeds from issuance of convertible debentures                 350,000us-gaap_ProceedsFromIssuanceOfSecuredDebt
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Number of shares issuable upon conversion of debentures                 911,628us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Amount of discount on debentures                 42,000us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		   24,322us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember
Conversion price                 $ 0.23us-gaap_DebtInstrumentConvertibleConversionPrice1
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Legal fees                 28,000us-gaap_LegalFees
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Number of common stock purchase due to issuance of warrants                 36,466sgbx_NumberOfCommonStockPurchaseDueToIssuanceOfWarrants
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		    
Convertible debentures redemption amount           756,000sgbx_ConvertibleDebenturesRedemptionAmount
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		 756,000sgbx_ConvertibleDebenturesRedemptionAmount
/ dei_LegalEntityAxis
= sgbx_NextViewCapitalMember		        
Description for conversion price for periodic redemption in shares      
Based on a conversion price equal to the lesser of (a) $0.43 per share, subject to adjustments upon certain events, and (b) 90% of the average of the volume weighted average price for the 20 consecutive trading days prior to the applicable redemption date, provided that the conversion price shall be equal to at least a $0.01 discount to the volume weighted average price for the 20 consecutive days that is immediately prior to the applicable redemption date. The Company made a payment of $252,000 in April 2014 and $140,000 in July 2014.
              
Scott Masterson [Member]                      
Convertible Debentures (Textual)                      
Fair value of common stock               60,801sgbx_FairValueOfCommonStock
/ dei_LegalEntityAxis
= sgbx_ScottMastersonMember		      
Face amount of convertible debentures               560,000us-gaap_DebtInstrumentFaceAmount
/ dei_LegalEntityAxis
= sgbx_ScottMastersonMember		      
Interest rate on convertible debenture               8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= sgbx_ScottMastersonMember		      
Due date of convertible debentures               Oct. 15, 2014      
Proceeds from issuance of convertible debentures               500,000us-gaap_ProceedsFromIssuanceOfSecuredDebt
/ dei_LegalEntityAxis
= sgbx_ScottMastersonMember		      
Number of shares issuable upon conversion of debentures               1,302,326us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ dei_LegalEntityAxis
= sgbx_ScottMastersonMember		      
Amount of discount on debentures               60,000us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= sgbx_ScottMastersonMember		      
Description for conversion price for periodic redemption in shares       Based on a conversion price equal to the lesser of (a) $0.43 per share, subject to adjustments upon certain events, and (b) 90% of the average of the volume weighted average price for the 20 consecutive trading days prior to the applicable redemption date, provided that the conversion price shall be equal to at least a $0.01 discount to the volume weighted average price for the 20 consecutive days that is immediately prior to the applicable redemption date.              
Convertible Debt Securities [Member]                      
Convertible Debentures (Textual)                      
Face amount of convertible debentures     2,080,500us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Interest rate on convertible debenture     8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Due date of convertible debentures     Apr. 01, 2016                
Number of shares issuable upon conversion of debentures     8,322,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Amount of discount on debentures     255,500us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Conversion price     $ 0.25us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Warrant term     5 years                
Warrants exercise price     $ 0.275us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Percentage of conversion price     110.00%sgbx_PercentageOfConversionPrice
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Legal fees     20,000us-gaap_LegalFees
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Fair value of conversion option liabilities     413,606sgbx_FairValueOfConversionOptionLiabilities
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Covertible debentures maturity value     1,825,000sgbx_DebenturesStatedMaturityValue
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember		                
Converion price, description     The Company entered into a Securities Purchase Agreement (the "2014 SPA") with four investors, including Hillair pursuant to which the Company issued and sold (i) $2,080,500 in 8% Original Discount Senior Secured Convertible Debentures, for $1,825,000, with a conversion price of $0.25 per share, subject to adjustment, with a final maturity date of April 1, 2016 (the "2014 New Debentures" together with the 2014 Exchange Debentures, the "2014 Debentures"), and (ii) a five (5) year Common Stock purchase warrant to purchase up to 8,322,000 shares of the Company's common stock at an exercise price of $0.275 (110% of the conversion price), subject to adjustment with a fair value of $532,944 at issuance, which has been recorded as a discount to the 2014 New Debentures.                
Convertible Debt Securities [Member] | Frank Casano [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures               14,971us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember
/ dei_LegalEntityAxis
= sgbx_FrankCasanoMember		      
January 2013 Debentures [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures         45,418us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= sgbx_ConvertibleDebentureOneMember		            
April 2013 Debentures [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures         79,200us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= sgbx_ConvertibleDebentureTwoMember		            
Existing Debentures [Member]                      
Convertible Debentures (Textual)                      
Conversion price     $ 0.25us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_DebtInstrumentAxis
= sgbx_ExistingDebenturesMember		                
Fair value of conversion option liabilities     2,366sgbx_FairValueOfConversionOptionLiabilities
/ us-gaap_DebtInstrumentAxis
= sgbx_ExistingDebenturesMember		                
Covertible debentures maturity value     1,680,000sgbx_DebenturesStatedMaturityValue
/ us-gaap_DebtInstrumentAxis
= sgbx_ExistingDebenturesMember		                
Converion price, description     Under the terms of the Exchange Agreement, Existing Debentures with a stated maturity value of $1,680,000 were surrendered in exchange for (i) new Senior Convertible Debentures with a stated interest rate of eight percent (8%) per year, a stated maturity value of $1,915,200, a conversion price of $0.25 per share, subject to adjustment, with a final maturity date of April 1, 2016 (the ''2014 Exchange Debentures''), and (ii) a five (5) year Common Stock purchase warrant to purchase up to 7,660,800 shares of the Company's common stock at an exercise price of $0.275 (110% of the conversion price), subject to adjustment (the ''2014 Exchange Warrants'').                
Fair value of warrants     490,601sgbx_FairValueOfWarrantsUnderAffiliates
/ us-gaap_DebtInstrumentAxis
= sgbx_ExistingDebenturesMember		                
Securities Purchase Agreement [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures                   69,502us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Debt instrument, covenant description       The underlying securities purchase and debenture agreements also provide for the Company to pay liquidated damages in the event of its failure to (i) deliver shares upon the conversion of the debentures, in which case the liquidated damages would amount to a cash payment of $10 per trading day (increasing to $15 per trading day on the fifth trading day) for each $1,000 of principal amount being converted until such certificates are delivered (ii) maintain timely required filings with the SEC, in which case the liquidated damages would amount to a cash payment of two percent (2.0%) of the aggregate subscription amount of such purchasers securities on the day of the failure to maintain timely filings with the SEC and on every thirtieth (30th) day thereafter until the required documents are filed with the SEC or is no longer required for the purchaser to transfer the underlying shares pursuant to Rule 144 and (iii) to compensate the debenture holder for a Buy-In (as defined in the debentures) of securities previously sold by the debenture holder on a failure to timely deliver certificates upon conversion by the debenture holder.              
Securities Purchase Agreement [Member] | Hillair Capital Investments Lp [Member]                      
Convertible Debentures (Textual)                      
Fair value of common stock                   199,806sgbx_FairValueOfCommonStock
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Face amount of convertible debentures                   1,120,000us-gaap_DebtInstrumentFaceAmount
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Interest rate on convertible debenture                   8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Due date of convertible debentures                   Jul. 01, 2014  
Proceeds from issuance of convertible debentures                   1,000,000us-gaap_ProceedsFromIssuanceOfSecuredDebt
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Number of shares issuable upon conversion of debentures                   2,604,651us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Amount of discount on debentures         144,769us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		         120,000us-gaap_DebtInstrumentUnamortizedDiscount
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Conversion price                   $ 0.43us-gaap_DebtInstrumentConvertibleConversionPrice1
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Description of interest payable on unconverted outstanding principal amount of debenture       The Company shall pay interest on the aggregate unconverted and then outstanding principal amount of the Debenture at 8% per annum, payable quarterly on January 1, April 1, July 1 and October 1, beginning on July 1, 2013.              
Description for interest payment       Based on a share value equal to the lesser of (a) $0.43 per share, subject to adjustments upon certain events, and (b) 90% of the average of the volume weighted average price for 20 consecutive trading days prior to the applicable interest payment date, provided that the price shall be equal to at least a $0.01 discount to the volume weighted average price for the trading day that is immediately prior to the applicable interest payment date.              
Legal fees       15,466us-gaap_LegalFees
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		 15,466us-gaap_LegalFees
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		            
Payments for due diligence         45,000sgbx_PaymentsForDueDiligence
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		            
Securities Purchase Agreement [Member] | Merriman Capital Inc [Member]                      
Convertible Debentures (Textual)                      
Number of shares issuable upon conversion of debentures                   104,186us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ dei_LegalEntityAxis
= sgbx_MerrimanCapitalIncMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Legal fees                   80,000us-gaap_LegalFees
/ dei_LegalEntityAxis
= sgbx_MerrimanCapitalIncMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		  
Securities Purchase Agreement [Member] | Convertible Debt Securities [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures     792,798us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= us-gaap_ConvertibleDebtSecuritiesMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		                
Securities Purchase Agreement [Member] | January 2013 Debentures [Member] | Hillair Capital Investments Lp [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures         145,418us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= sgbx_ConvertibleDebentureOneMember
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		            
Securities Purchase Agreement [Member] | April 2013 Debentures [Member] | Hillair Capital Investments Lp [Member]                      
Convertible Debentures (Textual)                      
Amount of discount on debentures         79,200us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= sgbx_ConvertibleDebentureTwoMember
/ dei_LegalEntityAxis
= sgbx_HillairCapitalInvestmentsLpMember
/ us-gaap_PlanNameAxis
= sgbx_SecuritiesPurchaseAgreementMember		            
Exchange Agreement [Member]                      
Convertible Debentures (Textual)                      
Number of shares issuable upon conversion of debentures     7,660,800us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= sgbx_ExchangeAgreementMember		                
Warrant term     5 years                
Warrants exercise price     $ 0.275us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_PlanNameAxis
= sgbx_ExchangeAgreementMember		                
Loss of transaction     1,104,179sgbx_GainLossOnDebtExchange
/ us-gaap_PlanNameAxis
= sgbx_ExchangeAgreementMember		                
Percentage of conversion price     110.00%sgbx_PercentageOfConversionPrice
/ us-gaap_PlanNameAxis
= sgbx_ExchangeAgreementMember		                
Fair value of conversion option liabilities     $ 380,744sgbx_FairValueOfConversionOptionLiabilities
/ us-gaap_PlanNameAxis
= sgbx_ExchangeAgreementMember