Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale and Other Securities (Details Textuals)

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Available-for-Sale and Other Securities (Details Textuals) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Investment Securities (Textuals)    
Stock issued by Federal Reserve Banks included in other securities $ 142.6 $ 139.0
Federal Home Loan Bank of Cincinnati [Member]
   
Investment Securities (Textuals)    
Stock issued by the Federal Home Loan Bank included in other securities 165.6 165.6
Federal Home Loan Bank of Indianapolis [Member]
   
Investment Securities (Textuals)    
Stock issued by the Federal Home Loan Bank included in other securities $ 3.5 $ 3.5