CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)
Jun. 30, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 2,819,542 $ 2,317,456
Restricted cash 1,056,379 1,574,233
Accounts receivable, net 10,211,778 10,617,416
Retention receivable, current 904,367 734,214
Inventories 876,824 581,176
Prepayments and other receivables 1,275,708 1,532,283
Total current assets 17,144,598 17,356,778
Construction in progress 12,707,723 12,106,316
Land use rights, net 3,101,917 3,118,482
Plant and equipment, net 10,944,845 11,236,347
TOTAL ASSETS 43,899,083 43,817,923
Current liabilities:    
Accounts payable, trade 2,410,053 2,679,267
Short-term bank borrowings 5,803,440 7,296,570
Notes payable, related party 3,082,354 1,500,000
Amount due to a related party 431,682 431,682
Income tax payable 11,976 93,407
Convertible promissory notes, net 960,000  
Current portion of obligation under finance lease   34,287
Other payables and accrued liabilities 1,493,772 1,304,887
Total current liabilities 14,193,277 13,340,100
Long-term liabilities:    
Convertible promissory notes, net   960,000
TOTAL LIABILITIES 14,193,277 14,300,100
Commitments and contingencies      
Stockholders' equity:    
Common stock, $0.001 par value; 50,000,000 shares authorized; 5,326,501 shares issued and outstanding as of June 30, 2012 and December 31, 2011 5,326 5,326
Additional paid-in capital 8,443,563 8,443,563
Statutory reserve 2,203,798 2,203,798
Accumulated other comprehensive income 3,600,372 3,431,354
Retained earnings 15,452,747 15,433,782
Total stockholders' equity 29,705,806 29,517,823
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 43,899,083 $ 43,817,923