Employee Benefit Plans (Changes in Benefit Obligation, Fair Value of Assets and Funded Status) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Change in plan assets:
Ending balance	$ 7,884	$ 10,867
Amounts recognized in Accumulated Other Comprehensive Income (Loss):
Total	(3,843)	(3,483)	(6,238)	(6,027)
Pension benefits
Change in benefit obligation:
Beginning balance	14,723	17,306
Interest cost	509	543	599
Plan participants’ contributions	0	0
Actuarial loss (gain)	2,060	(2,333)
Benefit payments	(163)	(154)
Settlements	(3,434)	(639)
Ending balance	13,695	14,723	17,306
Accumulated benefit obligation at December 31	13,695	14,723
Change in plan assets:
Beginning balance	11,287	10,019
Actual return on plan assets	569	2,061
Employer contributions	0	0
Plan participants’ contributions	0	0
Benefit payments	(163)	(154)
Settlements	(3,434)	(639)
Ending balance	8,259	11,287	10,019
Funded status at December 31	(5,436)	(3,436)
Amounts recognized in Consolidated Balance Sheets:
Prepaid benefit costs	0	0
Accrued benefit liability	(5,436)	(3,436)
Net amount recognized	(5,436)	(3,436)
Amounts recognized in Accumulated Other Comprehensive Income (Loss):
Unrecognized prior service cost	0	0
Unrecognized net loss	3,886	3,533
Total	3,886	3,533
Discount Rate	3.50%	4.30%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Change in benefit obligation:
Beginning balance	143	244
Interest cost	6	5	10
Plan participants’ contributions	46	40
Actuarial loss (gain)	26	(85)
Benefit payments	(69)	(61)
Settlements	0	0
Ending balance	152	143	244
Accumulated benefit obligation at December 31	0	0
Change in plan assets:
Beginning balance	0	0
Actual return on plan assets	0	0
Employer contributions	23	21
Plan participants’ contributions	46	40
Benefit payments	(69)	(61)
Settlements	0	0
Ending balance	0	0	0
Funded status at December 31	(152)	(143)
Amounts recognized in Consolidated Balance Sheets:
Prepaid benefit costs	0	0
Accrued benefit liability	(152)	(143)
Net amount recognized	(152)	(143)
Amounts recognized in Accumulated Other Comprehensive Income (Loss):
Unrecognized prior service cost	(2)	(2)
Unrecognized net loss	(43)	(65)
Total	(45)	(67)
Discount Rate	3.50%	4.30%
Mutual funds - equity
Change in plan assets:
Ending balance	5,756	8,863
Mortgage-backed securities
Change in plan assets:
Ending balance		97
States and political subdivisions
Change in plan assets:
Ending balance		649
Corporate bonds
Change in plan assets:
Ending balance		357
Mutual funds - taxable income
Change in plan assets:
Ending balance	2,128	901
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis
Change in plan assets:
Ending balance	7,884	10,121
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis | Mutual funds - equity
Change in plan assets:
Ending balance	5,756	8,863
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis | Mortgage-backed securities
Change in plan assets:
Ending balance		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis | States and political subdivisions
Change in plan assets:
Ending balance		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis | Corporate bonds
Change in plan assets:
Ending balance		357
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring Basis | Mutual funds - taxable income
Change in plan assets:
Ending balance	2,128	901
Significant Other Observable Inputs (Level 2) | Recurring Basis
Change in plan assets:
Ending balance	0	746
Significant Other Observable Inputs (Level 2) | Recurring Basis | Mutual funds - equity
Change in plan assets:
Ending balance	0	0
Significant Other Observable Inputs (Level 2) | Recurring Basis | Mortgage-backed securities
Change in plan assets:
Ending balance		97
Significant Other Observable Inputs (Level 2) | Recurring Basis | States and political subdivisions
Change in plan assets:
Ending balance		649
Significant Other Observable Inputs (Level 2) | Recurring Basis | Corporate bonds
Change in plan assets:
Ending balance		0
Significant Other Observable Inputs (Level 2) | Recurring Basis | Mutual funds - taxable income
Change in plan assets:
Ending balance	$ 0	$ 0