Quarterly report pursuant to sections 13 or 15(d)

CERTAIN RISKS AND CONCENTRATIONS (Details)

v2.4.0.8
CERTAIN RISKS AND CONCENTRATIONS (Details) (China Dredging Group Co Ltd [Member])
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Concentration Risk, Percentage 79.00% 77.00% 90.00% 68.00%
CCCC Shanghai Dredging Co., Ltd [Member]
       
Concentration Risk, Percentage 0.00% [1] 14.00% [1] 0.00% [1] 21.00% [1]
CCCC Tianjin Dredging Co., [Member]
       
Concentration Risk, Percentage 0.00% [1] 17.00% [1] 0.00% [1] 18.00% [1]
CCCC Guangzhou Dredging Co [Member]
       
Concentration Risk, Percentage 41.00% [1] 23.00% [1] 31.00% [1] 18.00% [1]
Guangdong Jindonghai Holding Co [Member]
       
Concentration Risk, Percentage 0.00% 10.00% 17.00% 0.00%
Nanjing Shuili Engineering Co [Member]
       
Concentration Risk, Percentage 15.00% 13.00% 19.00% 11.00%
China Gezhouba Group Co [Member]
       
Concentration Risk, Percentage 23.00% 0.00% 23.00% 0.00%
[1] Indicates customers under control of a common parent company