Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Revenue	$ 8,604,598	$ 9,187,627
Cost of revenue:
Cost of revenue	6,118,163	8,631,002
Gross profit	2,486,435	556,625
Operating expenses:
Payroll and related expenses	1,144,187	827,522
General and administrative expenses	780,021	809,800
Marketing and business development expense	143,335	70,627
Pre-project expenses		10,133
Total	2,067,543	1,718,082
Operating income (loss)	418,892	(1,161,457)
Other income (expense):
Interest expense	(48,849)	(363)
Interest income	12,783	17,470
Other income	118,902
Total	82,836	17,107
Income (loss) before income taxes	501,728	(1,144,350)
Income tax expense
Net income (loss)	501,728	(1,144,350)
Add: net income attributable to noncontrolling interests	1,218,905	889,527
Net loss attributable to common stockholders of SG Blocks, Inc.	$ (717,177)	$ (2,033,877)
Net loss per share attributable to SG Blocks, Inc.
Basic and diluted	$ (0.06)	$ (0.23)
Weighted average shares outstanding:
Basic and diluted	11,998,334	8,744,469
Construction services
Revenue:
Revenue	$ 1,668,384	$ 3,137,715
Cost of revenue:
Cost of revenue	1,677,560	4,093,540
Engineering services
Revenue:
Revenue	50,386	93,949
Cost of revenue:
Cost of revenue	43,153	9,770
Medical revenue
Revenue:
Revenue	6,885,828	5,955,963
Cost of revenue:
Cost of revenue	$ 4,397,450	$ 4,527,692