Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income (Details) (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 out of Accumulated Other Comprehensive Income [Line Items]
INCOME BEFORE PROVISION FOR INCOME TAXES	$ 7,917		$ 7,283		$ 15,551		$ 14,703
Provision for Income Taxes	2,393		2,076		4,707		4,315
Net Income	5,524		5,207		10,844		10,388
Total Reclassifications out of Accumulated Other Comprehensive Income	(72)	[1]	(228)	[1]	(129)	[1]	(146)	[1]
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains and Losses on Available for Sale Securities [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Reclassification Adjustment for Securities Gains Included in Net Income, Before-Tax Amount	(27)	[1]	13	[1]	(27)	[1]	540	[1]
INCOME BEFORE PROVISION FOR INCOME TAXES	(27)	[1]	13	[1]	(27)	[1]	540	[1]
Provision for Income Taxes	11	[1]	(5)	[1]	11	[1]	(214)	[1]
Net Income	(16)	[1]	8	[1]	(16)	[1]	326	[1]
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Amortization of Defined Benefit Pension Items, Prior-Service Costs, Before Tax	21	[1],[2]	0	[1],[2]	43	[1],[2]	0	[1],[2]
Amortization of Net Retirement Plan Actuarial Loss, Before-Tax Amount	(114)	[1],[2]	(392)	[1],[2]	(230)	[1],[2]	(783)	[1],[2]
INCOME BEFORE PROVISION FOR INCOME TAXES	(93)	[1]	(392)	[1]	(187)	[1]	(783)	[1]
Provision for Income Taxes	37	[1]	156	[1]	74	[1]	311	[1]
Net Income	$ (56)	[1]	$ (236)	[1]	$ (113)	[1]	$ (472)	[1]

[1] Amounts in parentheses indicate debits to profit/loss.

[2] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see pension footnote for additional details.).