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Balances at Other Banks	12 Months Ended
Balances at Other Banks	Dec. 31, 2012
Balances at Other Banks [Abstract]
Cash Reserve Deposit Required And Made [Text Block]	(2) Balances at Other Banks The Company is required to maintain certain reserves of vault cash and/or deposits with the Federal Reserve Bank. The amount of this reserve requirement, included in cash and due from banks and federal funds sold and other short term investments, was approximately $75.7 million and $67.1 million at December 31, 2012 and 2011, respectively.