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Organization and Business Background - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 6 Months Ended
Oct. 29, 2007
Jul. 16, 2007
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Dec. 31, 2010
Jun. 30, 2010
Feb. 10, 2010
Dec. 31, 2009
Jun. 24, 2009
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                        
Percentage of ownership for HBOP shareholders to exercise control over disposition of Dongfang Holding's shares in HBOP   100.00%                    
Shares of common stock issued to Dongfang Holding shareholders 7,450,497                      
Common stock, par value $ 0.001   $ 0.001   $ 0.001   $ 0.001          
Registered capital                 $ 60,000,000     $ 10,000,000
Service fee as percent of total annual profit                     80.00%  
Amount to be loaned by Baoding Shangede to HBOP equity owners                     10,000,000  
Loans terminated                   $ 10,000,000    
Percentage of distributable profit of HBOP entitled to Baoding Shengde               100.00%        
Percentage of revenues generated from HBOP     94.73% 94.59% 95.07% 94.11%            
Percentage of assets accounted by HBOP     70.44%   70.44%   68.20%          
Shengde Holdings
                       
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                        
Percentage of ownership interest     100.00%   100.00%