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Accumulated Other Comprehensive Income (Details 1) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Unrealized gains on available-for-sale securities      
Impairment losses on investment securities $ 1,954 $ 171 $ 202
Reclassification adjustment for net gains realized in net income (535) (14) (882)
Federal income tax expense (benefit) (482) (54)  
Net of tax $ 937 $ 103