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Consolidated Statements of Changes in Stockholders' Equity - USD ($) | Total | 0.01 Par Value Common Stock | Preferred Stock | Additional Paid-in Capital | Accumulated Deficit | SG Blocks Stockholders' Equity | Non-controlling interests
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2018 | $ 7,080,067 | $ 2,130 |  | $ 17,741,214 | $ (10,663,277) | $ 7,080,067 |
Beginning Balance, Shares at Dec. 31, 2018 |  | 213,002 |  |  |  |  |
Stock-based compensation | 946,660 |  |  | 946,660 |  | 946,660 |
Conversion of restricted stock units to common stock | 3,253,962 |  |  |  |  |  |
Issuance of common stock, net of issuance costs |  | $ 9,449 |  | 3,244,513 |  | 3,253,962 |
Issuance of common stock, net of issuance costs, Shares |  | 944,888 |  |  |  |  |
Net loss | (6,920,540) |  |  |  | (6,920,540) | (6,920,540) |
Ending balance at Dec. 31, 2019 | 4,360,149 | $ 11,579 |  | 21,932,387 | (17,583,817) | 4,360,149 |
Ending Balance, Shares at Dec. 31, 2019 |  | 1,157,890 |  |  |  |  |
Stock-based compensation | 1,261,215 |  |  | 1,261,215 |  | 1,261,215 |
Conversion of restricted stock units to common stock |  | $ 246 |  | (246) |  |  |
Conversion of restricted stock units to common stock, Shares |  | 24,672 |  |  |  |  |
Reverse stock split settlement | (122) |  |  | (122) |  | (122) |
Reverse stock split settlement, Shares |  | (38) |  |  |  |  |
Conversion of debt exchange to common stock | 206,263 | $ 737 |  | 205,526 |  | 206,263 |
Conversion of debt exchange to common stock, Shares |  | 73,665 |  |  |  |  |
Issuance of common stock, net of issuance costs | 17,118,480 | $ 73,400 |  | 17,045,080 |  | 17,118,480 |
Issuance of common stock, net of issuance costs, Shares |  | 7,340,000 |  |  |  |  |
Net loss | (4,508,162) |  |  |  | (4,692,729) | (4,692,729) | 184,567
Ending balance at Dec. 31, 2020 | $ 18,437,823 | $ 85,962 |  | $ 40,443,840 | $ (22,276,546) | $ 18,253,256 | $ 184,567
Ending Balance, Shares at Dec. 31, 2020 |  | 8,596,189 |  |  |  |  |

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