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SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN (Details) (Supplemental Executive Retirement Plan [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 participant	Mar. 31, 2012
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of participants	5
Components of net periodic pension cost [Abstract]
Service cost	$ 162	$ 144
Interest cost	86	96
Amortization of prior service cost	146	146
Amortization of actuarial loss	23	2
Total net periodic benefit cost	$ 417	$ 388

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- Definition

The number of participants in the defined benefit plan.

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The amount of gains or losses recognized in net periodic benefit cost.

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The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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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 total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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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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