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Accounting Pronouncements
6 Months Ended
Jun. 30, 2011
Accounting Pronouncements [Abstract]  
Accounting Pronouncements
11.   Accounting Pronouncements
          In June 2011, the FASB issued Accounting Standards Update No. 2011-05 (ASU 2011-05), Presentation of Comprehensive Income. This standard eliminates the current option to present other comprehensive income and its components in the statement of changes in equity. It will require companies to report the total of comprehensive income including the components of net income and the components of other comprehensive income in either a single continuous statement of comprehensive income or in two separate but consecutive statements. ASU 2011-05 is effective for the Company for the year beginning on January 1, 2012.