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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

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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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-Publisher FASB

-Name Accounting Standards Codification

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Target allocation of investments of this type to total plan assets presented on a weighted average basis.

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The amount of the cost recognized during the period for defined contribution plans.

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-Name Accounting Standards Codification

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Pension Plans (Details 2) (USD $)	12 Months Ended
Pension Plans (Details 2) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension plans
Fair values of pension assets	$ 7,024,000	$ 6,347,000	$ 6,041,000
Benefit payments which are expected to be paid
2013	991,000
2014	354,000
2015	374,000
2016	378,000
2017	393,000
2018-2022	2,357,000
Defined contribution 401(k) plan
Matching contributions to the plan	108,000
Total
Pension plans
Fair values of pension assets	7,024,000	6,347,000
Level 1
Pension plans
Fair values of pension assets	7,024,000	6,347,000
Equities
Pension plans
Target allocations for plan assets (as a percent)	60.00%
Equities - passively managed securities using ETFs
Pension plans
Target allocations for plan assets (as a percent)	50.00%
Equities - actively managed investment vehicles
Pension plans
Target allocations for plan assets (as a percent)	50.00%
Corporate common stocks \| Total
Pension plans
Fair values of pension assets	693,000	646,000
Corporate common stocks \| Level 1
Pension plans
Fair values of pension assets	693,000	646,000
Mutual funds/ETFs: \| Total
Pension plans
Fair values of pension assets	6,331,000	5,701,000
Mutual funds/ETFs: \| Level 1
Pension plans
Fair values of pension assets	6,331,000	5,701,000
Equity-large cap \| Total
Pension plans
Fair values of pension assets	1,416,000	1,273,000
Equity-large cap \| Level 1
Pension plans
Fair values of pension assets	1,416,000	1,273,000
Equity-mid cap \| Total
Pension plans
Fair values of pension assets	622,000	522,000
Equity-mid cap \| Level 1
Pension plans
Fair values of pension assets	622,000	522,000
Equity-small cap \| Total
Pension plans
Fair values of pension assets	141,000	128,000
Equity-small cap \| Level 1
Pension plans
Fair values of pension assets	141,000	128,000
Equity-international \| Total
Pension plans
Fair values of pension assets	992,000	833,000
Equity-international \| Level 1
Pension plans
Fair values of pension assets	992,000	833,000
Fixed income
Pension plans
Target allocations for plan assets (as a percent)	40.00%
Fixed income \| Total
Pension plans
Fair values of pension assets	2,607,000	2,388,000
Fixed income \| Level 1
Pension plans
Fair values of pension assets	2,607,000	2,388,000
Real estate \| Total
Pension plans
Fair values of pension assets	380,000	341,000
Real estate \| Level 1
Pension plans
Fair values of pension assets	380,000	341,000
Money market \| Total
Pension plans
Fair values of pension assets	173,000	216,000
Money market \| Level 1
Pension plans
Fair values of pension assets	$ 173,000	$ 216,000