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Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Revenue:        
SG Block sales $ 535,130 $ 482,893 $ 955,824 $ 904,843
Engineering services 20,095 523,959 20,095 594,754
Project management 1,066,395 76,203 1,601,869 107,473
Total revenue 1,621,620 1,083,055 2,577,788 1,607,070
Cost of revenue:        
SG Block sales 423,514 349,974 745,868 686,769
Engineering services 15,275 430,522 15,275 503,650
Project management 1,228,579 77,476 1,807,139 97,459
Total cost of revenue 1,667,368 857,972 2,568,282 1,287,878
Gross profit (45,748) 225,083 9,506 319,192
Operating expenses:        
Payroll and related expenses 332,558 387,417 677,093 714,890
General and administrative expenses 211,795 288,243 377,261 520,109
Marketing and business development expense 40,167 33,100 55,430 53,059
Pre-project expenses 27,079 12,431 34,294 22,393
Total 611,599 721,191 1,144,078 1,310,451
Operating loss (657,347) (496,108) (1,134,572) (991,259)
Other income (expense):        
Interest expense (171,331) (2,043) (321,101) (4,087)
Interest income 46 41 80 68
Change in fair value of warrant liabilities 48,862 22,618 268,357 33,064
Cancellation of trade liabilities and unpaid interest    8,294    31,447
Total (122,423) 28,910 (52,664) 60,492
Net loss (779,770) (467,198) (1,187,236) (930,767)
Comprehensive loss        
Foreign currency translation adjustment (4,766) (607) (3,730) (634)
Total comprehensive loss $ (784,536) $ (467,805) $ (1,190,966) $ (931,401)
Net loss per share - basic and diluted:        
Basic and diluted $ (0.02) $ (0.01) $ (0.03) $ (0.02)
Weighted average shares outstanding:        
Basic and diluted 42,198,093 41,570,600 42,198,093 40,709,019