Accumulated Other Comprehensive Loss (Changes in Each Component of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Loss [Line Items]
Beginning Balance	$ (6,468)	$ (4,709)	$ (6,902)	$ (5,875)
Other comprehensive income (loss) before reclassifications	464	(463)	917	820
Amounts reclassified from accumulated other comprehensive loss	24	527	5	410
Net current period other comprehensive income (loss)	488	64	922	1,230
Ending Balance	(5,980)	(4,645)	(5,980)	(4,645)
Net Unrealized Gains and Losses on Investment Securities [Member]
Accumulated Other Comprehensive Loss [Line Items]
Beginning Balance	1,429	1,950	1,843	1,043
Other comprehensive income (loss) before reclassifications	256	$ (463)	(139)	561
Amounts reclassified from accumulated other comprehensive loss	24		5	(117)
Net current period other comprehensive income (loss)	280	$ (463)	(134)	444
Ending Balance	1,709	1,487	1,709	1,487
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Loss [Line Items]
Beginning Balance	(7,897)	$ (6,659)	(8,745)	(6,918)
Other comprehensive income (loss) before reclassifications	$ 208		$ 1,056	259
Amounts reclassified from accumulated other comprehensive loss		$ 527		527
Net current period other comprehensive income (loss)	$ 208	527	$ 1,056	786
Ending Balance	$ (7,689)	$ (6,132)	$ (7,689)	$ (6,132)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References + Details