Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
The components of accumulated other comprehensive income (loss):
Total accumulated other comprehensive income (loss)	$ 2,018	$ 1,900	$ (1,487)	$ (176)
Unrealized Gain (Loss) on Securities Available for Sale [Member]
The components of accumulated other comprehensive income (loss):
Total accumulated other comprehensive income (loss)	(1,755)	(2,021)	1,123
Deferred tax asset (liability)	685	789	(438)
Total accumulated other comprehensive income (loss)	(1,070)	(1,232)	685	2,007
Additional Pension Asset (Liability) [Member]
The components of accumulated other comprehensive income (loss):
Total accumulated other comprehensive income (loss)	5,025	5,135	(3,561)
Deferred tax asset (liability)	(1,937)	(2,003)	1,389
Total accumulated other comprehensive income (loss)	$ 3,088	$ 3,132	$ (2,172)	$ (2,183)