Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue:
Revenue	$ 38,341,702	$ 8,755,623
Cost of revenue:
Cost of revenue	36,012,654	6,535,444
Gross profit	2,329,048	2,220,179
Operating expenses:
Payroll and related expenses	4,186,642	2,992,207
General and administrative expenses	3,788,024	3,449,849
Marketing and business development expense	288,438	230,248
Pre-project expenses	48,794	130,707
Total	8,311,898	6,803,011
Operating loss	(5,982,850)	(4,582,832)
Other income (expense):
Interest expense	(1,254)	(9,275)
Interest income	57,266	61,675
Other income	62,602	23,282
Loss on asset disposal	(44,081)	(1,012)
Loss from equity affiliates	(55)
Total	74,478	74,670
Loss before income taxes	(5,908,372)	(4,508,162)
Income tax expense
Net loss	(5,908,372)	(4,508,162)
Add: net profit attributable to noncontrolling interests	4,924,302	184,567
Net loss attributable to common stockholders of SG Blocks, Inc.	$ (10,832,674)	$ (4,692,729)
Net loss per share attributable to SG Blocks, Inc. - basic and diluted:
Basic and diluted	$ (1.16)	$ (0.79)
Weighted average shares outstanding:
Basic and diluted	9,339,199	5,959,403
Construction services
Revenue:
Revenue	$ 6,537,941	$ 4,104,917
Cost of revenue:
Cost of revenue	13,251,470	3,224,457
Engineering services
Revenue:
Revenue	255,749	409,206
Cost of revenue:
Cost of revenue	154,126	322,853
Medical revenue
Revenue:
Revenue	31,548,012	4,241,500
Cost of revenue:
Cost of revenue	$ 22,607,058	$ 2,988,134