Represents number of directors.

No definition available.

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- Definition

Represents number of employees.

+ References

No definition available.

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- Definition

The non-vested stock options, which will be expensed over a weighted average during the period.

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ 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 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	instant

- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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Balance Type:	debit
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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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

- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

+ References

Reference 1: 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

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-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

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Name:	us-gaap_PlanNameAxis=sgbxq_TwoThousandSixteenPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_TitleOfIndividualAxis=us-gaap_ChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_TitleOfIndividualAxis=us-gaap_ChiefOperatingOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=us-gaap_DirectorMember
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Data Type:	na
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Stock Options and Grants (Details Textual)	1 Months Ended			3 Months Ended		6 Months Ended		12 Months Ended
Stock Options and Grants (Details Textual)	Jan. 30, 2017 $ / shares shares	Nov. 01, 2016 USD ($) Employees Directors $ / shares shares	Oct. 26, 2016 shares	Mar. 31, 2017 USD ($) $ / shares shares	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($) $ / shares shares	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)
Stock Options and Grants (Textual)
Unrecognized compensation costs				$ 555,600
Non-vested stock options weighted average period				1 year 4 months 28 days
Stock price \| $ / shares				$ 3.00
Granted options to purchase \| shares	247,343			598,548
Exercise price \| $ / shares	$ 3.00
Successor [Member]
Stock Options and Grants (Textual)
stock-based compensation expense				$ 154,383		$ 188,343
Unrecognized compensation costs						$ 179,881
Non-vested stock options weighted average period						1 year 8 months 5 days
Stock price \| $ / shares						$ 3.0
Predecessor [Member]
Stock Options and Grants (Textual)
stock-based compensation expense					$ 46,898		$ 119,146	$ 192,776
2016 Plan [Member] \| Paul Galvin [Member]
Stock Options and Grants (Textual)
Granted options to purchase \| shares		111,606
Exercise price \| $ / shares		$ 3.00
Fair value of options		$ 272,834
2016 Plan [Member] \| Stevan Armstrong [Member]
Stock Options and Grants (Textual)
Granted options to purchase \| shares		43,677
Exercise price \| $ / shares		$ 3.00
Fair value of options		$ 272,834
2016 Plan [Member] \| Director [Member]
Stock Options and Grants (Textual)
Granted options to purchase \| shares		63,333
Exercise price \| $ / shares		$ 3.00
Fair value of options		$ 272,834
Number of directors \| Directors		4
2016 Plan [Member] \| Successor [Member]
Stock Options and Grants (Textual)
Restricted stock or options issued \| shares			500,000
Common stock available for issuance \| shares						204,499
2016 Plan One [Member] \| Mahesh Shetty [Member]
Stock Options and Grants (Textual)
Granted options to purchase \| shares		21,828
Exercise price \| $ / shares		$ 3.00
Fair value of options		$ 95,390
2016 Plan One [Member] \| Employee [Member]
Stock Options and Grants (Textual)
Granted options to purchase \| shares		54,596
Exercise price \| $ / shares		$ 3.00
Fair value of options		$ 95,390
Number of employees \| Employees		2