Accounting Policies, by Policy (Policies)	6 Months Ended
	Jun. 30, 2012
New Accounting Pronouncements, Policy [Policy Text Block]	Effect of Newly Issued but not yet Effective Accounting Standards In May 2011, the FASB issued ASU 2011.04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (the ASU). The ASU primarily clarifies existing fair value measurement guidance and is intended to align U.S. GAAP and IFRS.Additionally, the guidance requires several new disclosures.