CONSOLIDATED STATEMENTS COMPREHENSIVE (LOSS) INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement Of Other Comprehensive Income [Abstract]
Net income	$ 894	$ 1,261	$ 2,155	$ 1,741
Unrealized (losses) gains on securities:
Unrealized holding (losses) gains arising during the period	(9,870)	2,115	(10,517)	3,808
Tax effect	4,047	(867)	4,312	(1,561)
Reclassification adjustment for gains included in gain on sales or calls of securities, net		(968)	(543)	(959)
Provision for income taxes		397	223	393
Net of tax	(5,823)	677	(6,525)	1,681
Defined benefit pension plans
Net gain (loss) arising during the period	977	35	1,146
Tax effect	(400)	(14)	(470)
Reclassification adjustment for amortization of prior service cost and net gain included in salaries and employee benefits	74	34	148	69
(Benefit) provision for income taxes	(30)	(14)	(60)	(28)
Net of tax	621	41	764	41
Total other comprehensive (loss) income	(5,202)	718	(5,761)	1,722
Comprehensive (loss) income	$ (4,308)	$ 1,979	$ (3,606)	$ 3,463