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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 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 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=6867990&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 49

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(iv)(b)(i)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

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-Name Statement of Financial Accounting Standard (FAS)

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Pension Plans (Details 3) (USD $)	12 Months Ended
Pension Plans (Details 3) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Plans
Fair values of pension assets	$ 12,558,000	$ 11,239,000	$ 9,758,000
Expected benefit payments to be paid
2013	681,000
2014	499,000
2015	572,000
2016	720,000
2017	650,000
2018-2022	4,016,000
Contributions under the defined contribution 401(k) plan	887,000	237,000	179,000
Total
Pension Plans
Fair values of pension assets	12,558,000	11,239,000
Level 1
Pension Plans
Fair values of pension assets	12,558,000	11,239,000
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 stock \| Total
Pension Plans
Fair values of pension assets	1,244,000	1,110,000
Corporate common stock \| Level 1
Pension Plans
Fair values of pension assets	1,244,000	1,110,000
Mutual funds/ETFs \| Total
Pension Plans
Fair values of pension assets	11,314,000	10,129,000
Mutual funds/ETFs \| Level 1
Pension Plans
Fair values of pension assets	11,314,000	10,129,000
Equity-large cap \| Total
Pension Plans
Fair values of pension assets	2,515,000	2,220,000
Equity-large cap \| Level 1
Pension Plans
Fair values of pension assets	2,515,000	2,220,000
Equity-mid cap \| Total
Pension Plans
Fair values of pension assets	1,122,000	1,017,000
Equity-mid cap \| Level 1
Pension Plans
Fair values of pension assets	1,122,000	1,017,000
Equity-small cap \| Total
Pension Plans
Fair values of pension assets	245,000	223,000
Equity-small cap \| Level 1
Pension Plans
Fair values of pension assets	245,000	223,000
Equity-international \| Total
Pension Plans
Fair values of pension assets	1,756,000	1,460,000
Equity-international \| Level 1
Pension Plans
Fair values of pension assets	1,756,000	1,460,000
Fixed income
Pension Plans
Target allocations for plan assets (as a percent)	40.00%
Fixed income \| Total
Pension Plans
Fair values of pension assets	4,701,000	4,208,000
Fixed income \| Level 1
Pension Plans
Fair values of pension assets	4,701,000	4,208,000
Real estate \| Total
Pension Plans
Fair values of pension assets	662,000	595,000
Real estate \| Level 1
Pension Plans
Fair values of pension assets	662,000	595,000
Money market \| Total
Pension Plans
Fair values of pension assets	313,000	406,000
Money market \| Level 1
Pension Plans
Fair values of pension assets	$ 313,000	$ 406,000