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Income Taxes (Narrative) (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
US [Member]
       
Applicable income tax rate 35.00% 35.00% 35.00% 35.00%
PRC [Member]
       
PRC enterprise tax rate     25.00%