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Summary of Significant Accounting Policies (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
The components of accumulated other comprehensive income (loss): |  |  |
Unrealized gain (loss) on securities available for sale | $ (1,163) | $ (691) | $ (2,021)
Deferred tax asset (liability) | 454 | 270 | 789
Net unrealized gain (loss) on securities available for sale | (709) | (421) | (1,232)
Additional pension asset (liability) | (4,657) | (257) | 5,135
Deferred tax asset (liability) | 1,816 | 100 | (2,003)
Net additional pension asset (liability) | (2,841) | (157) | 3,132
Total accumulated other comprehensive income (loss) | $ (3,550) | $ (578) | $ 1,900

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