Consolidated Statements Of Comprehensive 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
Net income	$ 4,178		$ 4,181		$ 8,184		$ 7,961
Changes in defined benefit plan assets and benefit obligations
Changes in net loss arising during the period1	31	[1]	26	[1]	61	[1]	52	[1]
Tax effect1	(11)		(11)		(21)		(19)
Amortization of prior service cost arising during the period1	(17)	[1]	(17)	[1]	(34)	[1]	(34)	[1]
Tax effect1	6	[1]	7	[1]	12	[1]	13	[1]
Net of tax amount	9		5		18		12
Unrealized gain (loss) on cash flow hedging instruments
Unrealized holding gain (loss) arising during the period	67		(33)		116		(28)
Tax effect	(26)		14		(45)		12
Net of tax amount	41		(19)		71		(16)
Unrealized holding (losses) gains on securities
Unrealized holding (losses) gains arising during the period	(4,960)		1,208		(5,785)		1,401
Tax effect	1,736		(423)		2,025		(491)
Reclassification adjustment for gains included in net income2	(4)	[2]	(8)	[2]	(6)	[2]	(8)	[2]
Tax effect	1		3		2		3
Net of tax amount	(3,227)		780		(3,764)		905
Other comprehensive income (loss), net:	(3,177)		766		(3,675)		901
Comprehensive income, net	$ 1,001		$ 4,947		$ 4,509		$ 8,862

[1] These items are included in the computation of net periodic benefit cost. See Note 6, Employee Benefit Plans, for additional information.

[2] Gains are included in "Net gains on calls of available for sale securities" on the income statement.