Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Unrealized gains (losses) on investment securities [Abstract]
Unrealized holding losses arising during period, before tax					$ (6,251)		$ (310)
Less adjustment for impaired investments, before tax							(859)
Less reclassification adjustment for gains realized in net loss, before tax					70		159
Unrealized gains (losses) on investment securities, before tax					(6,321)		390
Unrecognized benefit obligation expense [Abstract]
Less reclassification adjustment for amortization, before tax					(287)		(176)
Other comprehensive income (loss), net, before tax					(6,034)		566
Unrealized gains (losses) on investment securities [Abstract]
Unrealized holding losses arising during period, tax					(2,233)		(81)
Less adjustment for impaired investments, tax							(301)
Less reclassification adjustment for gains realized in net loss, tax					24		56
Unrealized gains (losses) on investment securities, tax					(2,257)		164
Unrecognized benefit obligation expense [Abstract]
Less reclassification adjustment for amortization, tax					(98)		(62)
Other comprehensive income (loss), net, tax					(2,159)		226
Unrealized gains (losses) on investment securities [Abstract]
Unrealized holding losses arising during period, net of tax	(4,253)		(593)		(4,018)		(229)
Less adjustment for impaired investments, net of tax	0	[1]	(558)	[1]	0	[1]	(558)	[1]
Less reclassification adjustment for gains realized in net loss	16	[2]	13	[2]	46	[2]	103	[2]
Unrealized gains (losses) on investment securities, net of tax	(4,269)		(48)		(4,064)		226
Unrecognized benefit obligation expense [Abstract]
Less reclassification adjustment for amortization	(95)	[3]	(63)	[3]	(189)	[3]	(114)	[3]
Other comprehensive (loss) income	$ (4,174)		$ 15		$ (3,875)		$ 340

[1] Amounts are included in total other-than-temporary impairment on investment securities on the Consolidated Statements of Operations in total non-interest income.

[2] Amounts are included in net gains on the sale of available for sale investment securities on the Consolidated Statements of Operations in total non-interest income.

[3] Amounts are included in salaries and benefits on the Consolidated Statements of Operations in non-interest expense.