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Contract Assets and Contract Liabilities (Details) - USD ($) | Sep. 30, 2024 | Dec. 31, 2023
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Costs and estimated earnings on uncompleted contracts |  |
Costs incurred on uncompleted contracts | $ 2,970,528 | $ 20,213,733
Provision for loss on uncompleted contracts |  |
Estimated earnings to date on uncompleted contracts | (313,363) | (968,040)
Gross contract assets | 2,657,165 | 19,245,693
Less: billings to date | (3,227,709) | (20,601,946)
Net contract liabilities on uncompleted contracts | $ (570,544) | $ (1,356,253)

X
- Definition The amount of contract assets gross. + References No definition available. + Details
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- Definition The amount of contract with customer asset after deduction of liability. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Costs in excess of billings to date. + References No definition available. + Details
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Namespace Prefix: | sgbx_
Data Type: | xbrli:monetaryItemType
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- Definition Costs incurred on uncompleted contracts. + References No definition available. + Details
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Namespace Prefix: | sgbx_
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- Definition Estimated income loss on uncompleted contracts. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition The amount of provision for loss on uncompleted contracts. + References No definition available. + Details
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Namespace Prefix: | sgbx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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