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Comprehensive Income (Schedule of Components of Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
The components of accumulated other comprehensive income (loss):        
Total accumulated other comprehensive income (loss) $ (1,059) $ (578) $ 2,018 $ 1,900
Unrealized Gain (Loss) on Securities Available for Sale [Member]        
The components of accumulated other comprehensive income (loss):        
Total accumulated other comprehensive income (loss) (1,433) (691) (1,755)  
Deferred tax asset (liability) 560 270 685  
Total accumulated other comprehensive income (loss) (873) (421) (1,070) (1,232)
Additional Pension Asset (Liability) [Member]        
The components of accumulated other comprehensive income (loss):        
Total accumulated other comprehensive income (loss) (304) (257) 5,025  
Deferred tax asset (liability) 118 100 (1,937)  
Total accumulated other comprehensive income (loss) $ (186) $ (157) $ 3,088 $ 3,132