Accumulated Other Comprehensive Income (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Change in funded status of post retirement benefits	$ 115		$ 338		$ 230		$ 552
Net of tax	116		336		231		548
Amount Reclassified From Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net securities gains (losses)	(1)		3		(1)		7
Income tax expense	0		(1)		0		(3)
Unrealized gain (loss) on securities, net of tax	(1)		2		(1)		4
Change in funded status of post retirement benefits	(237)	[1]	(563)	[1]	(474)	[1]	(920)	[1]
Income tax expense	122		225		244		368
Net of tax	(115)		(338)		(230)		(552)
Net of tax	$ (116)		$ (336)		$ (231)		$ (548)

[1] (a) Included in the computation of net periodic benefit cost. (see Footnote 7 for additional details).