Quarterly report pursuant to sections 13 or 15(d)

CAPITAL (Details Textual)

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CAPITAL (Details Textual) (USD $)
6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Feb. 25, 2013
Business Acquisition Contingent Consideration Issuance Shares 0.82947    
Ordinary shares, par value (in dollars per share) $ 0.001 $ 0.001 $ 0.001
Shares Issued Under Purchase Agreement 25,000,000    
Ordinary Stock Units Issued During Period Initial Public Offering Shares 30,329,883 5,000,000  
Warrants Issued During Period Initial Public Offering Shares 3,966,667    
Common Stock Shares Reserved For Future Issuance Exercise Of Warrants   8,966,667  
Class of Warrant or Right, Exercise Price of Warrants or Rights 12.00 12.00  
Warrant Liability Fair Value $ 18,255,237    
China Dredging Group Co Ltd [Member]
     
Percentage Of Net Profits Transfer To Statutory Reserve 10.00%    
Merchant Supreme Co Ltd [Member]
     
Percentage Of Net Profits Transfer To Statutory Reserve 50.00%