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Investment Securities Securities Gains and Losses (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Investments, Debt and Equity Securities [Abstract]    
Proceeds from sales of securities $ 0 $ 4,965
Gross realized gains 36 299
Gross realized losses 0 0
Net gain 36 299
Related income taxes $ 13 $ 105