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Pension and Employee Benefit Plans (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	$ 5,549	$ 5,020
Level 1 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	5,549	4,672
Level 2 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year		348
Level 3 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
Cash in Money Market Fund [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	156	323
Cash in Money Market Fund [Member] \| Level 1 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	156	323
Cash in Money Market Fund [Member] \| Level 2 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
Cash in Money Market Fund [Member] \| Level 3 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
U.S. government and agency securities [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	169	172
U.S. government and agency securities [Member] \| Level 1 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	169	172
U.S. government and agency securities [Member] \| Level 2 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
U.S. government and agency securities [Member] \| Level 3 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
Corporate Bonds and Notes [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year		348
Corporate Bonds and Notes [Member] \| Level 1 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
Corporate Bonds and Notes [Member] \| Level 2 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year		348
Corporate Bonds and Notes [Member] \| Level 3 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
Mutual Fund [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	5,224	4,177
Mutual Fund [Member] \| Level 1 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year	5,224	4,177
Mutual Fund [Member] \| Level 2 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year
Mutual Fund [Member] \| Level 3 [Member]
Disclosure of Fair Value Measurements of Pension Plan Assets
Fair value of plan assets at end of year

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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