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Concentration of Credit Risk | 12 Months Ended
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Dec. 31, 2012
Concentration and Major Customers and Suppliers Concentration Of Credit Risk [Abstract] |
Concentration of Credit Risk | (20) Concentration of Credit Risk Financial instruments for which the Company is potentially subject to concentration of credit risk consist principally of cash. The Company places its temporary cash investments in reputable financial institutions in the PRC and the United States. Although it is generally understood that the PRC central government stands behind all of the banks in China in the event of bank failure, there is no deposit insurance system in China that is similar to the protection provided by the Federal Deposit Insurance Corporation (FDIC) of the United States. The Company’s U.S. bank accounts are all fully covered by the FDIC insurance as of December 31, 2012 and 2011, respectively.

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