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PENSION PLANS (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Level 1
Fair values of the defined benefit retirement plan, by asset category
Fair value	$ 17,002	$ 16,404
Level 2
Fair values of the defined benefit retirement plan, by asset category
Fair value	6,524	6,155
Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	23,526	22,559
Money market accounts \| Level 1
Fair values of the defined benefit retirement plan, by asset category
Fair value	1,488	1,869
Money market accounts \| Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	1,488	1,869
Mutual funds \| Level 1
Fair values of the defined benefit retirement plan, by asset category
Fair value	454	439
Mutual funds \| Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	454	439
Government obligations \| Level 2
Fair values of the defined benefit retirement plan, by asset category
Fair value	3,438	3,264
Government obligations \| Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	3,438	3,264
Common stocks \| Level 1
Fair values of the defined benefit retirement plan, by asset category
Fair value	5,795	5,376
Common stocks \| Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	5,795	5,376
Exchange traded funds \| Level 1
Fair values of the defined benefit retirement plan, by asset category
Fair value	9,018	8,494
Exchange traded funds \| Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	9,018	8,494
Preferred stocks \| Level 1
Fair values of the defined benefit retirement plan, by asset category
Fair value	247	226
Preferred stocks \| Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	247	226
Corporate bonds and debentures \| Level 2
Fair values of the defined benefit retirement plan, by asset category
Fair value	3,086	2,891
Corporate bonds and debentures \| Total
Fair values of the defined benefit retirement plan, by asset category
Fair value	$ 3,086	$ 2,891

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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