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4. Securities (Summary Of Other-Than-Temporary Impairment Losses On Securities) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Available-for-sale Securities [Abstract]      
Total other-than-temporary impairment losses $ (155) $ (1,308) $ (6,279)
Portion of loss recognized in other comprehensive income 37 857 3,633
Net impairment loss recognized in earnings $ (118) $ (451) $ (2,646)