Benefit Plans (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Change in benefit obligation
Benefit obligation at beginning of year	$ 13,890	$ 15,201
Service cost	88us-gaap_DefinedBenefitPlanServiceCost	86us-gaap_DefinedBenefitPlanServiceCost	77us-gaap_DefinedBenefitPlanServiceCost
Interest cost	687us-gaap_DefinedBenefitPlanInterestCost	597us-gaap_DefinedBenefitPlanInterestCost	725us-gaap_DefinedBenefitPlanInterestCost
Benefits paid	(42)us-gaap_DefinedBenefitPlanBenefitsPaid	(42)us-gaap_DefinedBenefitPlanBenefitsPaid
Actuarial (gain) loss, net	1,850	(1,952)
Benefit obligation at end of year	16,473	13,890	15,201
Amounts recognized in the Consolidated Balance Sheets
Net liabilities included in other liabilities	(13,954)	(13,941)
Amounts recognized in accumulated other comprehensive income (loss)	$ (2,519)	$ 51

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

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- Definition

1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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For a classified balance sheet, the amount recognized in balance sheet as a current liability associated with an underfunded defined benefit plan.

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