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Recently Issued Accounting Pronouncements	12 Months Ended
Recently Issued Accounting Pronouncements	Dec. 31, 2012
Recently Issued Accounting Pronouncements [Abstract]
Description of New Accounting Pronouncements Adopted and Not yet Adopted [Text Block]	Recently Issued Accounting Pronouncements On February 5, 2013, the FASB issued Accounting Standards Update 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, which adds additional disclosure requirements for items reclassified out of accumulated other comprehensive income. This ASU will be effective for the first interim reporting period in 2013.